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Student should factorise equation to (x-2)(x+3) = 0 This gives roots of 2 and -3

Find from student what the first step is (get a or b in terms of the other).  

a = 2.8 x10^5 = 0.28x10^6

a + b = (0.28 + 1.6) x 10^6

= 1.88 x10^6

ii)

Know that a^x x b^y...

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To combine these two fractions into one, you have to multiply the equation by the denominators in order to make a common denominator: 5(x-5)/(x+1)(x-5) + 6(x+1)/(x+1)(x-5) Now that the denominators are th...

A quadratic equations is a second-order equation with at most two solutions.The standard form of a quadratic equation looks like: ax² + bx + c = 0 . For instance if we have the equation x^2...