naturalhairedbeauty naturalhairedbeauty

20-04-2018
Mathematics

contestada

Solve this quadratic equation. Show all work.

4x^2-2x-5=0

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aaronsikazwe88 aaronsikazwe88

24-04-2018

x= -b⁺₋ √b²-4ac/2a
x= (-(-2)⁺₋√(-2)²- 4(4)(-5))/2(4)
x= 4 ⁺₋√4+80/8
x= (4⁺₋ 9.165)/8
x= 4+9.165)/8 or x= 4-9.165)/8
x= 1.40 or x= -0.896

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