Question

4x^2+ 28x - 72 Factorusation splitting middle term​

Answer 1

Step-by-step explanation:

4x²+28x-72

duvide it by 2

2x²+14x-36

again,duvide it by 2

x²+7x-18

x²+9x-2x-18

x(x+9)-2(x+9)

(x+9)(x-2)

Answer 2

Answer:4(x-2)(X+9)

Step-by-step explanation:

I'm writing x^2 as X2, else it will be a problem for me to write the ans

4x2+28x-72

4(X2+7x-18)

4(X2+9x-2x-18)

4(X{X+9}-2{X+9})

4(x-2)(X+9)