Question

Need help rn 30 points

Answer 1

Answer: X = ($-\frac{5}{4}$, 6)

Step-by-step explanation:

x(4x - 19) = 30

4x^2 - 19x = 30

4x^2 - 19x - 30 = 0

ax^2 + bx + c = 0

$X{1}=$  $\frac{-b+\sqrt{b^{2} -4ac}}{2a}$= $\frac{19+\sqrt{(-19)^{2} -4(4)(-30)}}{2(4)}$ = 6

$X{2}=$ $\frac{-b-\sqrt{b^{2} -4ac}}{2a}$=$\frac{19-\sqrt{(-19)^{2} -4(4)(-30)}}{2(4)}$= $-\frac{5}{4}$ = -1.25

X = ($-\frac{5}{4}$, 6)