Which is a solution to x 2 x 10 13
Asked by maham237 @ in Mathematics viewed by 265 People
Which is a solution to (x − 2)(x + 10) = 13?
x = 3
x = 8
x = 10
x = 11
Answered by maham237 @
(x-2)(x+10)=13
Subtract 13 from both sides
x²+8x-20-13=13-13
x²+8x-33=0
Factorized
(x-3)(x+11)=0
Now set factors equal to 0
x-3=0 or x+11= 0
x=3 or x=-11
The answer is A
Good night :)
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