Find the product
-$(a-11)(a+11)$

A) $a^{2}-22 a-121$
B) $a^{2}+22 a-121$
C) $a^{2}-121$
D) $a^{2}-22$

Name: Find the product -$(a-11)(a+11)$ A) $a^{2}-22 a-121$ B) $a^{2}+22 a-121$ C) $a^{2}-121$ D) $a^{2}-22$
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Question

Find the product
-$(a-11)(a+11)$

A) $a^{2}-22 a-121$
B) $a^{2}+22 a-121$
C) $a^{2}-121$
D) $a^{2}-22$

Quizplus · Accepted Answer

This is a special case of the difference of squares formula, $a^2 - b^2 = (a - b)(a + b)$. Here, $a = a$ and $b = 11$, so the product is $a^2 - 11^2 = a^2 - 121$.

Find the Product - (a−11)(a+11)(a-11)(a+11)(a−11)(a+11) A) a2−22a−121a^{2}-22 a-121a2−22a−121 B) a2+22a−121a^{2}+22 a-121a2+22a−121 C) a2−121a^{2}-121a2−121 D) a2−22a^{2}-22a2−22

Find the Product
- $(a-11)(a+11)$ A) $a^{2}-22 a-121$ B) $a^{2}+22 a-121$ C) $a^{2}-121$ D) $a^{2}-22$