What Is 9r Squared - 49?
Answer:
9r Squared - 49
It is an algebraic expression with variable r. To find the value of r, put the expression is equal to nil.
9r Squared - 49 = 0
9r2 - 49 = 0
Adding 49 on both sides
9r2 - 49 + 49 = 0 + 49
9r2 = 49
Dividing by 9 on both sides
9r2/9 = 49/ 9
r2 = 49 / 9
taking square root on both sides
[r2]1/2 = [49 / 9]1/2
r = + 7/3
So, the values of r are 7/3 and -7/3.
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