Question

x square + 10x =200 find x​

Answer 1

the value of x is minus 20

see the attachment

Answer 2

Answer :

x² + 10x = 200

⇒ x² + 10x - 200 = 0

⇒ x² + 20x - 10x - 200 = 0

⇒ x ( x + 20 ) - 10 ( x + 20 ) = 0

⇒ ( x + 20 ) ( x - 10 ) = 0

Therefore,

x = - 20 or x = 10