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Maths
GCSE

Solve the equation 6x^2 + 17x - 39 = 0

Using the quadratic equation with a = 6, b = 17 and c = -39, x is found to be 1.5 or -4.33

SE
Answered by Sian E. Maths tutor
3768 Views

simplify 36^(-1/2)

1/6 - we can split 36^(-1/2) into 36^(-1*1/2) this way we can apply what we know about basic power rules to split up the problem into more familiar chunks.x^(1/2) means we take the square root of x and x^...

GB
Answered by George B. Maths tutor
7329 Views

Prove that the square of an odd number is always 1 more than a multiple of 4

First, we need to define what an odd number is. An odd number can be expressed as the product of 2n+1, where n can be any whole number bigger than 0. You can check this by inputting a few numbers for n (s...

ED
Answered by Emanuel D. Maths tutor
3551 Views

Solve 7x-5>22-2x

9x>27X>3

LP
Answered by Lucy P. Maths tutor
2876 Views

Expand the following expression and simplify: (3x+2)(4x+5)

12x2 + 15x + 8x + 10 = 12x2 + 23x + 10

PD
Answered by Priscilla D. Maths tutor
4281 Views

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