Use any method to solve the equation. If necessary, round to the nearest hundredth. 4x^2 – 28x = –11

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15-11-2017
Mathematics

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Use any method to solve the equation. If necessary, round to the nearest hundredth. 4x^2 – 28x = –11

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thomasin thomasin · Answer 1 · 2017-11-15T20:26:07+01:00

thomasin thomasin

15-11-2017

Remember Order of Operations (PEMDAS). Now, let's solve for x.

4x^2 - 28x = -11

x^2 - 7x = -11/4

x^2 - 7x = -2.75

x^2 - 7x + 2.75 = 0

now, graph the equation to find the x-intercepts (the zeros)

x= 0.418, 6.582

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2long2serve2nations 2long2serve2nations · Answer 2 · 2018-11-10T05:23:55+01:00

2long2serve2nations 2long2serve2nations

10-11-2018

6.58, 0.42

is the correct answer!!!

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