Multiply.
-$(10+4 x)(9+4 x)$
A) $4 x^{2}+76 x+76$
B) $16 x^{2}+75 x+90$
C) $16 x^{2}+76 x+90$
D) $16 x^{2}+90 x+76$

Name: Multiply. -$(10+4 x)(9+4 x)$ A) $4 x^{2}+76 x+76$ B) $16 x^{2}+75 x+90$ C) $16 x^{2}+76 x+90$ D) $16 x^{2}+90 x+76$
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Question

Quizplus · Accepted Answer

Using the distributive property (FOIL method) to multiply the two binomials: First terms ($10*9=90$), Outer terms ($10*4x=40x$), Inner terms ($4x*9=36x$), and Last terms ($4x*4x=16x^2$). Adding these together: $16x^2 + 76x + 90$.

Multiply - (10+4x)(9+4x)(10+4 x)(9+4 x)(10+4x)(9+4x) A) 4x2+76x+764 x^{2}+76 x+764x2+76x+76 B) 16x2+75x+9016 x^{2}+75 x+9016x2+75x+90

Multiply
- $(10+4 x)(9+4 x)$ A) $4 x^{2}+76 x+76$ B) $16 x^{2}+75 x+90$