Question

find the roots of X2+7x=0by factorisation method​

Answer 1

Answer:

x is either 0 or -7

Step-by-step explanation:

factorizing ,

x^2+7x = 0

now taking x common

x(x+7)=0

if product of 2 numbers is zero ,

one of the numbers is obviously zero.

so we can form two equations.

1. x=0/x+7(zero divided by any number except zero is 0)

so x = 0

or ,

2. (x+7)=0/x

x+7=0

so, x=-7

(zero divided by any number except zero is 0)

Answer 2

Answer:

x²+7x=0

x(x+7)=0

X=(0,-7