Question

(x-7)(x+4)=0 find value of x​

Answer 1

Answer:

x= -7 or 4

Step-by-step explanation:

(x-7)(x+4)=0

x²+4x-7x-28=0    (by middle term split method)

x(x-4)+7(x-4)=0

(x+7)(x-4)=0

x+7=0  ,  x-4=0

x= -7     ,  x=4