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Maths
GCSE

Expand (2x+3) (3x-1)

6x2 + 7x - 3

DS
Answered by Dharshini S. Maths tutor
2711 Views

f(x) = 2x^2 + 7x + 6 . factorize this equation

2x2 + 7x + 6 step 1: find 2 numbers which times to make 12 and add to make 7, ans 3 and 4 step 2: rewrite equation as follows. 2x2 +4x +3x +6step 3 factorize into: 2x(x+2) + 3 ( x+2)...

MJ
Answered by Mikey J. Maths tutor
5558 Views

Expand x(x+4)

You must expand the brackets and then handle each section separately x multiplied by x = x^2 x multiplied by 4 = 4x answer is x^2 + 4x

TD
Answered by Tutor125675 D. Maths tutor
6094 Views

How to solve a quadratic equation?

There are several ways to solve a quadratic equation. 1.Quadratic formula ax2 + bx + c = 0, where a can't equal 0 but b and c can.x = (-b± (b2 - 4ac)) / 2a2. completing the square(x ...

AM
Answered by Alvaro M. Maths tutor
2965 Views

66 people went on a day trip and each took part in one activity: skating, bowling or painting. 43 were female. 4 out of the 10 that went skating were male. 20 people did painting. 10 males went bowling. How many females did painting?

This question is worth 4 marks and requires us to work with the information we are given. To set this up clearly, I would suggest drawing out a table with the three activities listed down the side and mal...

AG
Answered by Abby G. Maths tutor
6783 Views

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