Question

4x²=100 Respuesta y comprobacion

Answer 1

4x^2 = 100

x^2 = 100 / 4

x^2 = 25

x = ±√25

x1 = +5

x2 = - 5

CS= {5; - 5}

Comprobacion:

4(5)^2 = 100

4(25) = 100

100 = 100

4(-5)^2 = 100

4(25) = 100

100 = 100