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First you need to pick a variable to solve for( irrelevant which one is picked) so I will choose to solve y first as in this question it is easier (as y has no coefficient). So make y the subject of the s...
To factorise the equation, we first need to find one of its roots. To do this, we need to find values of x for which f(x)=0.First we will guess x=1.So f(1)=2(13) - 7(12) + 2(1) + 3 =...
2x2 - x - 6 = (2x+3)(x-2)
5.6 x10^5
12 = 43Therefore sqrt(12) = sqrt(43) The square root of the product of two numbers can the written as the product of the square roots of the numbersHence sqrt(4*3) = sqrt(4) * sqrt(3) sqrt(4) = 2...
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