exam
Maths Puzzle
Numerical Ability
Can you please show me how to add and simply this problem? thank you!
12/x^2y+5/xy^2
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exam Other Question
(x+5)(3x-1)+13=0
2x^2+3x=20
simplify:
(4x^3+x^2-3)-(-9x^3+5x^2-5)
thank you for your help