Multiply.
-$\left(\mathrm{s}-\frac{4}{7}\right)^{2}$
A) $s^{2}-\frac{8}{49} s+\frac{16}{49}$
B) $s^{2}-\frac{8}{7} s+\frac{16}{49}$
C) $s^{2}-\frac{16}{7} s+\frac{16}{49}$
D) $s^{2}-8 s+16$

Question

Quizplus · Accepted Answer

To square the binomial $\left(s-\frac{4}{7}\right)^{2}$, we use the formula $(a-b)^2 = a^2 - 2ab + b^2$. Applying this to the given expression, we get $s^2 - 2\left(s\cdot\frac{4}{7}\right) + \left(\frac{4}{7}\right)^2 = s^2 - \frac{8}{7}s + \frac{16}{49}$.