Simplify (x+9)(x+7) by using the identity
(x + a)(x + b) = x
2 + (a + b)x + ab.
Answers
Answered by
3
Answer:
Step-by-step explanation:
= (x+9)(x+7)
= x² + (9+7)x +(9)(7)
= x² + 15x + 63
Answered by
0
Answer:
x + 32x + 63
Step-by-step explanation:
(x + a)(x + b) = x + 2(a + b)x + ab ----> Identity
Given: (x+9)(x+7)
So, a = 9 and b = 7.
= x + 2(9 + 7)x + 9 * 7
= x + 32x + 63
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