exam
Maths Puzzle
Numerical Ability
multiply. (7-9x^6)^2
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exam Other Question
A garden area is 30 ft long and 20 ft wide. A path of uniform width
is set around the edge. If the remaining garden area is 400 ft2, what is the width of the path?
Multiply and simplify, I need help!
6x^2-11x-21 x^4-81
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5x^2+8x-21 x^2-6x+9