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First we need to rearrange so that it's all on one side of the equals sign:x 2 + 2x - 48 = 0 Now we have to find what will sum to make the coefficient of x (2) and multiplies together to get -48. So, the fac...

Identify a common denominator4( x + 1)/12 + 3(2 x + 5)/12 (= 2)2. Expand both brackets(4 x + 4)/12 + (6 x + 15)/12 = 23. Multiply out the denominator4 x + 4 + 6 x + 15 = 12× 24. X's on one side, numbers on t...

You take the power of X down and multiply the term by it. Then you reduce the power of the term in X by 1.

Divide the term in x by 2 and then put it in the bracket which will be squared. The last term from that expansion needs to be adjusted for.

(3x^2+14x-5)(4x-3)= 12x^3-9x^2+56x^2-42x-20x+15=12x^3+47x^2-62x+15