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Expand and simplify (n + 2)3 − n3.Write out the brackets in full:(n + 2)(n + 2)(n + 2) − n3Use F.O.I.L. (...
Innerinner + outerouter + innerouter + outerinnerCheck if anything could be added together to simplify the termsResult = x2+5x+6
There are 2 main methods for solving simultaneous equations: 1) by substitution, and 2) by elimination. Have a look at how each method works and pick the one that's best for you! In orde...
To complete the square, we will need to put the equation into the form (x - a)2 - b + 8 = 0, where a is half of the coefficient of x (12 in th...
Looking at the first element of the equation 5x6, we can simply multiply 6 by 5 to give 30 and subtract 1 from the power of x. So d/dx[5x6] ...
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