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Simplify: 3(x+5)-4(2x+1)

This is a simple question where students need to use BIDMAS to solve the equation. The easiest method is to seperate the two sides and solve individually, then combine. Firstly, 3(x+5) multiplies out to g...

Answered by Magdalena K. • Maths tutor

6756 Views

Anna has 6 bananas. Ben has 2.5 times more bananas than Anna. Callum has a third as many bananas as Anna and Ben have together. How many bananas do Anna, Ben and Callum have together?

Anna: 6 bananas. Ben: 6*2.5 = 15 bananas. Callum: (6+15)/3 = 7 bananas Altogether they have 6 + 15 + 7 bananas = 28 bananas

Answered by Avani M. • Maths tutor

2979 Views

How do I know which calculation to do first in questions with multiple operations (e.g. 2 x 3 - 2 x 5)?

In these situations, we can use an acronym called "BIDMAS". BIDMAS stands for: "brackets", "indices", "division", "multiplication", "addition" a...

Answered by Dalitso M. • Maths tutor

7703 Views

Solve this equation x^2 +4x - 5

Have you seen anything like this before?

What do you understand by this equation?

How do you expand brackets? Grid/smiles and eyebrows

How confident are you with factors and times ...

Answered by Zeenat M. • Maths tutor

3526 Views

Integrate x^2/(1+x^2)dx

Unlike if we had just x in the numerature, here the chain rule will do us no good. Integration by parts in this case also is little help - we end up with expressions at least as difficult as we started w...

Answered by Laird H. • Maths tutor

6858 Views