Question

Solve the equation 9x^2-29x-28=0

give your answer to decimal places when appropriate

Answer 1

The solution of the given equation is x = 4

Explanation:

Given equation 9 x² - 29 x - 28 =0

The Factors of 252 is 3 6 × 7

now 9 x² - 36 x + 7 x - 28 =0

taking common terms , we get

9 x ( x -4) + 7 ( x - 4) = 0

(9 x + 7) (x - 4) = 0

9 x + 7 = 0 and x - 4 = 0

`x = (-7)/(9) = - 0.7778` and x =4

`x = (-7)/(9) = - 0.7778` is not satisfied of the given equation

The solution of the given equation is x = 4