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Maths
GCSE

Solve the simultaneous equations 3x + 2y = 4 and 4x + 5y = 17

3x + 2y = 4 (equation 1) 4x + 5y = 17 (equation 2) Multiply equation 1 by 2.5, giving 7.5x + 5y = 10 (equation 1) 4x + 5y = 17 (equation 2) Subtract equation 2 from equation 1, giving 3.5x = -7 Therefore,...

Answered by Isabella G. • Maths tutor
3218 Views

Factorise the following expression: x^2-1

(x+1)(x-1)

Answered by Nelson T. • Maths tutor
2654 Views

Could you please go through an example question where you have to solve quadratic simultaneous equations?

Of course - let's solve this question:

Question: Solve the following quadratic simultaneous equations

(1) 2x + y = 4 - x

(2) y2 + 4x = 12

An...

Answered by Akhil S. • Maths tutor
2548 Views

Solve the equation x ^2>=3(x + 6)

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