Question

factorise- square+ 8 x - 20​

Answer 1

Answer:

The discriminant of f(x) = x^2- 8x+20, is negative, which means the equation has no roots. Another way to interpret this, is that the parabola (plot of a quadratic function) lies entirely above, or below the x axis. ... Therefore, the function is always positive

Answer 2

Answer:

x^2+8x-20

Step-by-step explanation:

x^2+10x-2x -20

x(x+10)-2(x+10 )

(x+10 )(x-2)

therefore x=-10 or 2