Question

Show that x=-3 is a solution of 2x²+5x-3=0

Answer 1

Hey freind here's your answer

Answer 2

Answer:

x = - 3 or x = - 1 / 2 are the roots of the given quadratic equation.

Step-by-step-explanation:

The given quadratic equation is

2x² - 5x - 3 = 0

∴ 2x² - 5x - 3 = 0

➜ 2x² - 6x + x - 3 = 0

➜ 2x ( x - 3 ) + 1 ( x - 3 ) = 0

➜ ( x - 3 ) ( 2x + 1 ) = 0

➜ ( x - 3 ) = 0 or ( 2x + 1 ) = 0

➜ x - 3 = 0 or 2x + 1 = 0

➜ x = 3 or 2x = - 1

➜ x = - 3 or x = - 1 / 2