Question

x(2x+5)=3 quadtric equation

Answer 1

Answer:

Question :-

➪ x(2x+ 5) = 3

Solution :-

➪ x(2x + 5) = 3

➭ 2x² + 5x = 3

➭ 2x² + 5x - 3 = 0

➭ 2x² + (6 - 1)x - 3 = 0

➭ 2x² + 6x - x - 3 = 0

➭ 2x(x + 3) - 1(x + 3) = 0

➭ (x + 3) (2x - 1) = 0

➭ (x + 3) = 0

➭ x + 3 = 0

➭ x = - 3

Either,

➭ (2x - 1) = 0

➭ 2x - 1 = 0

➭ 2x = 1

➭ x = 1/2

∴ The value of x is - 3, 1/2