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how am I meant to solve sq.root(6^2+8^2) = cube.root(125a^3) when one side is squared and the other is cubed?

first of all, have a look at each side separately to see you you can cancel anything down.e.g. the square and square root can cancel out. => sq.root(6 2 +8 2 ) = 6+8on the otherside, the cube, and cube ro...
RS
Answered by Rosalind S. • Maths tutor
7570 Views

what is the value of 27 to the power of -2/3

27 -2/3 1/(27 2/3 )1/(27 1/3 ) 2 1/3 2 = 1/9
LR
Answered by Lakshmi R. • Maths tutor
5658 Views

solve 125^(1/3)*2^(-3)

To find 125 1/3 we have to solve x 3 = 125 => This gives x=5 Then we have 2 -3 is equal to 1/(2 3 ) => This is equal to 1/8So to answer the question we have 5*(1/8)=5/8
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Answered by Robbie R. • Maths tutor
4344 Views

Solve the following quadratic equation x^(2)+7x+12

(x+a)(x+b) = 0The two numbers must have a product of 12 and a sum of 7.3*4 = 12 AND 3+4=7Therefore(x+3)(x+4) = 0Therefore x+3 = 0 --> x = -3OR x+4 = 0 --> x = -4
MV
Answered by Michael V. • Maths tutor
3254 Views

How do I rewrite algebraic fractions as a single fraction?

The first step to writing an expression with more than one fraction as a single fraction is to find their lowest common denominator. For example, in a question with two fractions where the denominators are x...
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Answered by David O. • Maths tutor
17030 Views