Mathematics: Please help with this

Please help with this - id6540052, liann8776

Tyjon16

27.01.2022

A. x = 5, -3

Step-by-step explanation:

The quadratic equation/formula is:

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

The setup is:

ax^2+bx+c=0

4x^2 - 8x -60=0

Plug in the numbers according to the letter associated:

$x = \frac{8+-\sqrt{-8^2-4(4)(-60)} }{2(4)}$

$x = \frac{8+-\sqrt{1024} }{8}$

$x = \frac{8+-32}{8}$

Solve for addition and subtraction:

$x = \frac{8+32}{8}$ $x = \frac{8-32}{8}$

$x = \frac{40}{8}$ $x = \frac{-24}{8}$

x = 5 x = -3

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aalejah25

31.10.2021

1.) 4 2.) 21 3.) 14

Step-by-step explanation:

it took me a while but i think this is your answer

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