exam
Maths Puzzle
Numerical Ability
A=2LW+2LH+2WH for H
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exam Other Question
Use a special product to multiply.
7(3a + 2.2) (3a - 2.2)
The problem is 2/x^-4. I know the way to solve normal negative exponents so I tried that and got: 2/1/x^4, simplified to 2/x^4 because 2/1 is 2. I got 2/x^4 as a final answer. Is this correct?