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=(x-5)(x+5)

So when you're solving a composite function you carry out the function closest to the 'x' first. It is useful to think of a composite function as the function of a function. Let me demonstrate with an exa...

64^-1/3= 1/64^1/3= 1/4

Step 1 - half the "x" coefficient = +5 Therefore p = +5 and place in brackets (x+5)²Step 2 - square the value of p and subtract 5*2 = 25 (x+5)² - 25Step 3 - add the numbe...