Solve each of the following equations by using the method of completing the square:

Question

Solve each of the following equations by using the method of completing the square: 7x 2 + 3x - 4 = 0

Philoid · Accepted Answer

Given: 7x² + 3x - 4 = 0

49x² + 21x - 28 = 0 (multiplying both sides by 7)

(adding on both sides)

using a² + 2ab + b² = (a + b)²

(taking square root on both sides)

Hence the roots of equation are