Question

4p²-20p+25=0 preciso pra agora

Answer 1

a = 4
b = -20
c = 25

$\frac{ -b+- \sqrt{ b^{2} -4.a.c}}{2.a} = \frac{ -(-20)+- \sqrt{ (-20)^{2} -4.4.25}}{2.4} = \frac{ 20+- \sqrt{ 400 -400}}{8}\frac{ 20+- 0}{8}$

p' = $\frac{ 20+0}{8} = \frac{20}{8} = \frac{5}{2}$