Question

find the roots of the following quadratic equations by factorisation X ( X + 4) equals to 12​

Answer 1

X square + 4 x minus 12 is equal to zero X square + 6 x minus 2 x minus 12 implies that X Into X + 6 - 2 into X + 6 now the under roots are x is equal to 2 and x is equal to minus 6

Answer 2

x(x+4)=12

x^2+4x-12=0

x^2+6x-2x-12=0

x(x+6)-2(x+6)=0

(x+6)(x-2)=0

x=-6 or x=2