What is the value of 5^15 / (5^3)^3

We know from our rule of indices that raising a power to a power can be simplified by multiplying so (53)3 = 59 we also know that when dividing indices we can use the subtraction rule. This mean 515 - 59 = 56

BG

Related Maths GCSE answers

All answers ▸

Solve the simultaneous equations: a) 2x + y = 18, b) x - y = 6


Sarah plans to paint a rectangular wall of dimensions 8.7m x 2.3m. A tin of paint costs £16.10 and covers 6 metres squared. Sarah has a budget of £56, can she afford to paint the wall? Explain your reasoning.


For the equation y=2x+7, what is the gradient and the y intercept?


How can I know whether to multiply or add probabilities?