For what values of x is x2 + 2x = 24 true? –6 and –4 –4 and 6 4 and –6 6 and 4
Asked by maham237 @ in Mathematics viewed by 390 People
Answered by maham237 @
You can solve this 2 ways: plug in all of the options or solve for x.
i going to solve for x.
given: x^2+2x=24 (subtract 24 on both sides to get make it look like x^2+x+1)
x^2+2x-24=0 (now factor x^2+2x-24 out)
x^2+2x-24 --> (x-4)(x+6)
new equation: (x-4)(x+6)=0 (now make them both equl zero)
new equaions: x-4=0 x+6=0 (now solve for x for both)
x-4=0 x+6=0
x=4 x=-6
your answer is 4 and -6.
if you were not taught how to do what i just did then i can message you how to plug those numbers into x^2+2x=24 to find the answer.
Similar Questions
For what values of x is x2 2x 24 true
Asked by maham237 @ in Mathematics viewed by 318 persons
For what values of x is x2 + 2x = 24 true?
–6 and –4,
–4 and 6,
4 and –6,
6 and 4
What is the value of x 3 4 6 8
Asked by maham237 @ in Mathematics viewed by 351 persons
Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?
Asked by maham237 @ in Mathematics viewed by 498 persons
a. 1+-/21 i
b.-1+-/19i
c. 1+-2/19i
d. 1+-/19i
What is the value of x 2 x 24 146
Asked by maham237 @ in Mathematics viewed by 257 persons
What is the value of x 6 8 10 12
Asked by admin @ in Mathematics viewed by 345 persons
What is the value of x?
6
8
10
12
Which equation is true for x 6 and x 2
Asked by maham237 @ in Mathematics viewed by 360 persons
x = –6 and x = 2?
2x2 – 16x + 12 = 0
2x2 + 8x – 24 = 0
3x2 – 4x – 12 = 0
3x2 + …
What is the remainder when (3x4 + 2x3 − x2 + 2x − 14) ÷ (x + 2)?
Asked by maham237 @ in Mathematics viewed by 280 persons
What is the remainder when (3x4 + 2x3 – x2 + 2x – 14) ÷ (x + 2) ?
Asked by maham237 @ in Mathematics viewed by 279 persons
Which is the graph of f(x) = x2 – 2x + 3?
Asked by wiki @ in Mathematics viewed by 307 persons
If x 1 x 6 find x2 1 x2
Asked by admin @ in Math viewed by 302 persons
If (x-1/x) = 6, then find (x2 + 1/x2) and (x + 1/x)
I found (x2+ 1/x2) = 38
Now how to find (x + 1/x) ?
Cot^2x-tan^2x=1 for all values of x
Asked by maham237 @ in Mathematics viewed by 577 persons
Cot^2x-tan^2x=1 for all values of x true or false?
8 2 2x 4 2 x 1 1 2 x
Asked by admin @ in Math viewed by 308 persons
Solve: 8 × 2^2x + 4 × 2^x+1 = 1 + 2^x
X 4 x 3 2x 2 x 1 x 1
Asked by admin @ in Math viewed by 368 persons
Find the remainder when x4+x3-2x2+x+1 is divided by x-1
Most viewed questions in Mathematics
Unit 6 similar triangles homework 2 similar figures answer key
Asked by maham237 @ in Mathematics viewed by 18364 persons
All things algebra unit 7 polygons and quadrilaterals answer key
Asked by admin @ in Mathematics viewed by 8162 persons
Gina wilson all things algebra 2016 answer key unit 11
Asked by admin @ in Mathematics viewed by 5785 persons
Unit 1 geometry basics homework 4 angle addition postulate answers
Asked by maham237 @ in Mathematics viewed by 3936 persons
Unit 6 exponents and exponential functions homework 8 answer key
Asked by maham237 @ in Mathematics viewed by 3255 persons
The manager of a vacation resort believes that the ages
Asked by maham237 @ in Mathematics viewed by 2925 persons
What is 271 403 rounded to the nearest ten thousand
Asked by maham237 @ in Mathematics viewed by 2800 persons
Unit 1 geometry basics homework 3 angle relationships answer key
Asked by maham237 @ in Mathematics viewed by 2584 persons
Why would a prism beat a sphere in a competition?
Asked by maham237 @ in Mathematics viewed by 2481 persons
An artist sells a painting for 20.50 but uses 5.75
Asked by maham237 @ in Mathematics viewed by 2431 persons
Unit 4 congruent triangles homework 1 classifying triangles answer key
Asked by maham237 @ in Mathematics viewed by 2421 persons
Unit 4 congruent triangles homework 2 angles of triangles
Asked by maham237 @ in Mathematics viewed by 2076 persons
Compare the values of the 2s and 5s in 55220
Asked by maham237 @ in Mathematics viewed by 1795 persons