Question

solve the following quadratic equation by factorisation and by completing the square method x square +8x _ 48 = 0​

Answer 1

Answer:

x square +8x = 48

adding 4 square to both sides

x square + 8x +4 square = 48 + 4 square

(x+4) whole square = 64

x+4 = +,-8

x = 4,-12