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Number Equations7x+y=12x^2 - y=3Rearrange equation 1 to equal yy=1-7xSubstitute 1 into 22x 2 - (1-7x)=32x 2 +7x-1=3Format into quadratic equation2x 2 +7x-4=0 (2x-1)(x+4)=02x-1=0 x+4=02x=1 x=1/2 x=-4Then work...

shown using a diagram during interview using the crab claw method, multiplying the correct components with one another, displaying how to set it out neatly and correctly to the benefit of the examiner. = 2x^...

There are two parts to this expression, the coefficients and the powers of x, and they can be addressed separately.It's important to remember the rules of indices - a m x a n = a m + n Also remember that 2x ...

Firstly, we need to take a factor of 2x out of the equation. This is because both 2x 2 and 12x can be divided by 2x. This gives us (2x)(x)+(2x)(6). If we then collect the terms 2x, we get 2x(x+6). 2x(x+6) is...

100% = 4.00 (divide both sides by 100 to find equivalent of 1%) 1% = 0.04 (multiply both sides by 52, to find value of 52%)(if struggling, multiply 4 by 50, then 4 by 2, and add the two products together)52%...