book Maths Puzzle Numerical Ability

Solve. -9(x-3)^2=-7

Please help.

Thank you.

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book Other Question

Hi, my name is virna and im really not sure where this question is catogorize under, but here's my question: What is the Additive inverse of a number and also, what is the absolute Evaluate the expression for given values of variables.....

3a divided by b
______________
a

a= (fraction) 1/3 b = - 3