Question

(x-3)(2x+1)=x(x+5)
can you solve this pls I'm not getting this​

Answer 1

Answer:

(x - 3)(2x + 1) = x(x + 5)

Here LHS = (x - 3)(2x + 1) = 2x2 - 6x + x - 3 = 2x2 - 5x - 3

RHS = x(x + 5) = x2 + 5x

Equating LHS and RHS

2x2 - 5x - 3 = x2 + 5x

x2 - 10x - 3 = 0 which is of the form ax2 + bx + c = 0

∴ it is a quadratic equation.

Answer 2

1 , 2 solution

Answer:

x =(10-√112)/2=5-2√ 7 = -0.292

x =(10+√112)/2=5+2√ 7 = 10.292