Solve x^3 - 25 = 103 - x^3
First, bring -25 to the other side: +25 which gives
x3 = 128 - x3
Now, same with - x3 ( + x3 for both sides), giving
2x3 = 128
128 / 2 gives the value of 64 for x3
In order to find the value for x, now 3√ 64
Therefore, x = 4
FF
Related Maths GCSE answers
All answers ▸Steve wants to put a hedge along one side of his garden. He needs to buy 27 plants for the hedge. Each plant costs £5.54 Steve has £150 to spend on plants for the hedge. Does Steve have enough money to buy all the plants he needs?
5 tins of soup have a total weight of 1750 grams. 4 tins of soup and 3 packets of soup have a total weight of 1490 grams. Work out the total weight of 3 tins of soup and 2 packets of soup.
How do I factorise quadratic equations?
Solve 5x-2=3x+11