Question

o if 4x² + 3x - 27 =0
then X is​

Answer 1

Answer:

Step-by-step explanation:

$4x^{2} +3x-27 = 0$

Use the quadratic formula

$x = \frac{-b+- \sqrt{b^{2} -4ac} }{2a}$

a=4; b=3; c=-27

$x = \frac{-3+- \sqrt{3^{2} -4(4)(-27)} }{2(4)}$

$x = \frac{-3+- \sqrt{441} }{8}$

$x = \frac{-3+- (21) }{8}$

x = 9/4 OR x = -3