Question

solving quadratic equations by factorization: 2x^2+5x-7=0 (step by step)

Answer 1

Answer:

x = 1 ; x = -7/2

Step-by-step explanation:

$2x^2 + 5x - 7=0\\=> 2x^2 - 2x + 7x - 7=0\\=> 2x(x - 1) + 7(x - 1)=0\\=> (x - 1) (2x + 7)=0$

Here the sol. of x =

1) x - 1 = 0

=> x = 1

2) 2x + 7 = 0

=> 2x = -7

=> x = -7/2