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7x²=28 I'm not sure about how to do thus problem
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3 votes
7x²=28 I'm not sure about how to do thus problem

User Navita
by
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2 Answers

3 votes

7x^2=28\\ x^2=4\\ x=-2 \vee x=2
User Anup Das Gupta
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8.4k points
2 votes

7x^(2) = 28


x^(2) = (28)/(7)


(28)/(7) = 4


x^(2) = 4


x = 2 or
x = -2

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User Sashang
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