Multiply by using the special case products. $$\left( - 2 r ^ { 2 } + 2 s \right) ^ { 2 }$$
A) $4 r ^ { 4 } - 8 r ^ { 2 } s + 4 s ^ { 2 }$
B) $4 r ^ { 4 } - 4 s ^ { 2 }$
C) $4 r ^ { 4 } + 4 s ^ { 2 }$
D) $4 r ^ { 4 } - 8 r s + 4 s ^ { 2 }$

Question

Quizplus · Accepted Answer

This problem uses the special case of squaring a binomial, $(a + b)^2 = a^2 + 2ab + b^2$. Applying this to $(-2r^2 + 2s)^2$, we get $4r^4 - 8r^2s + 4s^2$.

Multiply by Using the Special Case Products (−2r2+2s)2\left( - 2 r ^ { 2 } + 2 s \right) ^ { 2 }(−2r2+2s)2

Multiply by Using the Special Case Products $\left( - 2 r ^ { 2 } + 2 s \right) ^ { 2 }$