Find the product
-$(8 a+7 b)(5 a-9 b)$

A) $40 a^{2}+37 a b-63 b^{2}$
B) $40 a^{2}-37 a b-63 b^{2}$
C) $40 a^{2}-63 b^{2}$
D) $40 a^{2}-107 a b-63 b^{2}$

Question

Find the product
-$(8 a+7 b)(5 a-9 b)$

A) $40 a^{2}+37 a b-63 b^{2}$
B) $40 a^{2}-37 a b-63 b^{2}$
C) $40 a^{2}-63 b^{2}$
D) $40 a^{2}-107 a b-63 b^{2}$

Quizplus · Accepted Answer

To find the product of $(8 a+7 b)(5 a-9 b)$, we use the distributive property (FOIL method): - First, multiply the first terms: $8a \times 5a = 40a^2$- Outer terms: $8a \times -9b = -72ab$- Inner terms: $7b \times 5a = 35ab$- Last terms: $7b \times -9b = -63b^2$Adding these together: $40a^2 - 72ab + 35ab - 63b^2 = 40a^2 - 37ab - 63b^2$.

Find the Product - (8a+7b)(5a−9b)(8 a+7 b)(5 a-9 b)(8a+7b)(5a−9b) A) 40a2+37ab−63b240 a^{2}+37 a b-63 b^{2}40a2+37ab−63b2

Find the Product
- $(8 a+7 b)(5 a-9 b)$ A) $40 a^{2}+37 a b-63 b^{2}$