Multiply.
-$\left( 6 x + \frac { 3 } { 7 } \right) \left( 6 x - \frac { 3 } { 7 } \right)$
A) $36 x ^ { 2 } - \frac { 36 } { 7 } x - \frac { 9 } { 49 }$
B) $36 x ^ { 2 } + \frac { 36 } { 7 } x - \frac { 9 } { 49 }$
C) $36 x ^ { 2 } - \frac { 9 } { 49 }$
D) $36 x ^ { 2 } - \frac { 6 } { 7 }$

Question

Quizplus · Accepted Answer

This is an application of the difference of squares formula, $a^2 - b^2 = (a + b)(a - b)$. Here, $a = 6x$ and $b = \frac{3}{7}$, so the product is $36x^2 - \left(\frac{3}{7}\right)^2 = 36x^2 - \frac{9}{49}$.

Multiply - (6x+37)(6x−37)\left( 6 x + \frac { 3 } { 7 } \right) \left( 6 x - \frac { 3 } { 7 } \right)(6x+73​)(6x−73​)

Multiply
- $\left( 6 x + \frac { 3 } { 7 } \right) \left( 6 x - \frac { 3 } { 7 } \right)$