Multiply.
-$( 9 x + 2 ) ^ { 2 }$
A) $81 x ^ { 2 } + 36 x + 4$
B) $9 x ^ { 2 } + 36 x + 4$
C) $9 x ^ { 2 } + 4$
D) $81 x ^ { 2 } + 4$

Name: Multiply. -$( 9 x + 2 ) ^ { 2 }$ A) $81 x ^ { 2 } + 36 x + 4$ B) $9 x ^ { 2 } + 36 x + 4$ C) $9 x ^ { 2 } + 4$ D) $81 x ^ { 2 } + 4$
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Question

Quizplus · Accepted Answer

To multiply $(9x + 2)^2$, we use the formula $(a + b)^2 = a^2 + 2ab + b^2$. Applying this to the given expression: $a = 9x$ and $b = 2$, we get $81x^2 + 36x + 4$.

Multiply - (9x+2)2( 9 x + 2 ) ^ { 2 }(9x+2)2

Multiply
- $( 9 x + 2 ) ^ { 2 }$