Find the product.
-(1 + 5a)(1 - 9a)
A) $1 - 4 a - 4 a ^ { 2 }$
B) $1 - 4 a - 45 a ^ { 2 }$
C) $1 - 7 a - 45 a ^ { 2 }$
D) $a ^ { 2 } - 4 a - 45$

Name: Find the product. -(1 + 5a)(1 - 9a) A) $1 - 4 a - 4 a ^ { 2 }$ B) $1 - 4 a - 45 a ^ { 2 }$ C) $1 - 7 a - 45 a ^ { 2 }$ D) $a ^ { 2 } - 4 a - 45$
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Question

Quizplus · Accepted Answer

To find the product of the given expressions, we use the distributive property (FOIL method): $(1 + 5a)(1 - 9a) = 1*1 + 1*(-9a) + 5a*1 - 5a*9a = 1 - 9a + 5a - 45a^2 = 1 - 4a - 45a^2$.

Find the Product 1−4a−4a21 - 4 a - 4 a ^ { 2 }1−4a−4a2

Find the Product $1 - 4 a - 4 a ^ { 2 }$