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Solve the simultaneous equation: 4x-11y=34 and 2x+6y=-6

When solving a simultaneous equation, we will use the elimination method. This method sees us removing or ‘eliminating’ the x or y term. First we need to find the lowest common multiple of the x and y ter...

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Answered by Charlie B. Maths tutor
2775 Views

A curve with equation y = f(x) passes through the point (4,25). Given that f'(x) = (3/8)*x^2 - 10x^(-1/2) + 1, find f(x).

f'(x) = (3/8)x^2 - 10x^(-1/2) + 1Each term must be integrated (increase the power by 1 and divide by the new power), remembering to include + c.f(x) = (3/8)(x/3)^3 - 10*(2x)^(1/2) + x + cf(x) = (...

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Answered by Oliver W. Maths tutor
7897 Views

Find the roots of 2x^2-2x=3, leaving your answer in it's simplest exact form.

First we need to rearrange our equation so it is in the correct form of ax2+bx+c=0.So we'd move the 3 over to the left hand side to give us 2x2-2x-3=0.We need to use the quadratic formula. Usin...

JA
Answered by Jake A. Maths tutor
3524 Views

Solve the inequality x^2 + 4x ≥ 77

  1. First step is to rearrange to make the quadratic easier to work with: in a familiar form. x2 + 4x ≥ 77, -77 from both sides x2 + 4x - 77 ≥ 0 Now the quadratic can be solved, ...
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Answered by Alex D. Maths tutor
4558 Views

Show that the square of any odd number is an odd number

We can talk about any integer (or whole number) with the variable n. n could be any integer, 2, 3 or 100 or 5 billion and 1!If n is any integer, then what numbers could be written as 2n? These are the eve...

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Answered by Alice T. Maths tutor
3893 Views

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