Question

(X-5/4)^2 resolva o produto notável

Answer 1

Lembrete:

⇒$\left(a+b\right)^2=a^2+2ab+b^2$
⇒$\left(a-b\right)^2=a^2-2ab+b^2$

$\left(x-\frac{5}{4}\right)^2 \\ x^2-\left(2\cdot x\cdot \frac{5}{4}\right)+\left(\frac{5}{4}\right)^2 \\ \boxed{\bold{x^2-\frac{5x}{2}+\frac{25}{16}}}$