The product of a + 3 and –2a2 + 15a + 6 is –2a3 + xa2 + 51a + 18. what is the value of x?
Asked by maham237 @ in Mathematics viewed by 317 People
Answered by maham237 @
Value of x is 9
As when we multiply a + 3 by -2a2 + 15a + 6
We get
(a + 3) (-2a2 + 15a + 6)
-2a3 + 15a2 + 6a - 6a2 + 45a + 18
-2a3 + 9a2 + 51a + 18
If we compare the coefficients of a2, we get
x = 9
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