Solve the quadratic equation for x. What is one of the roots? 5×2 − 45 = 0

Question

Solve the quadratic equation for x. What is one of the roots? 5×2 − 45 = 0

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Eloise 3 months 2022-02-02T12:31:00+00:00 1 Answer 0 views 0

Answers ( )

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    2022-02-02T12:32:38+00:00

    Answer:

    x = ± 3

    Step-by-step explanation:

    Given

    5x² – 45 = 0 ( divide through by 5 )

    x² – 9 = 0 ( add 9 to both sides )

    x² = 9 ( take the square root of both sides )

    x = ± [tex]\sqrt{9}[/tex] = ± 3

    Thus the roots are x = – 3, x = 3

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45:7+7-4:2-5:5*4+35:2 =? ( )