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

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

User Renaldo Balaj
by
7.4k points

2 Answers

4 votes
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




User Kiloumap
by
8.2k points
5 votes

6.58, 0.42

is the correct answer!!!

User Sachin Khot
by
7.8k points
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