Question

Solve for x.. x^2+3x-40=0

Answer 1

x=5,-8

Answer 2

Can you explain please

Answer 3

x^2+3x-40=(x-5)(x+8)=0 => x=5 or x=-8

Answer 4

yeah sure see
use quadratic equation
alpha/beta are roots
the equation is alpha/beta=(-b+or -sqrt [b^2 -4ac])/2a

a,b,c are coefficents ax+by+c=0