Perform the operation and simplify. $( a - 14 ) ^ { 2 }$
A) $\quad a ^ { 2 } - 28 a + 196$
B) $\quad a ^ { 2 } - 14 a + 196$
C) $\quad a ^ { 2 } - 196$
D) $\quad a ^ { 2 } + 196$
E) $\quad a ^ { 2 } + 28 a + 196$

Question

Quizplus · Accepted Answer

Using the formula for expanding a binomial, we have $(a-14)^2 = a^2 - 2 \cdot a \cdot 14 + 14^2 = a^2 - 28a + 196$. Therefore, the answer is (A).

Perform the Operation and Simplify (a−14)2( a - 14 ) ^ { 2 }(a−14)2

Perform the Operation and Simplify $( a - 14 ) ^ { 2 }$