Solve the equation s/r -2=t/r solve for r
1 answer:
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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 = ± = ± 3
Thus the roots are x = - 3, x = 3