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Maths Puzzle
Numerical Ability
please help: x^2+5x-14
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Please help with this problem. (4x)^3(8x^-5)
I know that the ^3 means to multiply 4x times 4x times 4x.
In the second part, I believe the 8 does not get multiplied by the ^-5, o
4x-12y=5
-x+3y=-1
solve by substitution