Question

Give the roots of quadratic equation ײ+8×-7=58

Answer 1

x = - 13 , x = 5

Explanation:

x² + 8x - 7 = 58 ( subtract 58 from both sides )

x² + 8x - 65 = 0 ← in standard form

(x + 13)(x - 5) = 0 ← in factored form

equate each factor to zero and solve for x

x + 13 = 0 ( subtract 13 from both sides )

x = - 13

x - 5 = 0 ( add 5 to both sides )

x = 5

the roots of the equation are x = - 13 and x = 5