The problem
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why does 8x (x-3)^4 + 16x^2 (x-3)^3 factorise into 2^3 X x(x-3)^3 (3x-3) ? i need help understanding how this works with highest common factor
Answer provided by our tutors
Clicking on a particular solution step is an excellent way to quickly review the logic which is employed. Notice that (x-3)^3 is a common factor and '8', 2^3, is also a common factor.