Question

the roots of 2x(x+7) =120 are​

Answer 1

Answer:

Given, 2x(x+7) = 120

So We can write the Eqn as

2x²+14x-120=0

Making Factors Of -240 [ Multiplying 2 from x² with 120]

2x²+24x-10x-120=0

2x(x+12)-10(x+12)=0

(2x-10) (x+12) =0

In first case,

2x-10=0

2x=10

x=5

In Second case,

x+12=0

x=-12

Here , are the Two roots X = 5,-12

HOPE THIS WILL HELP YOU!!