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Expand and simplify the expression (x+5)(x+8).

This question is about multiplying two brackets together. There are two parts to each bracket: x , +3 and x , +5 . The parts in the first bracket must each be multiplied by both parts in the second bracket. ...
JC
Answered by Jamie C. • Maths tutor
19749 Views

What does it mean to "complete the square"?

Completing the square is a useful method of rearranging a quadratic equation so the unknown ("x") only appears in it once. The theory of completing the square tells us that we can take a quadratic ...
CG
Answered by Caitlin G. • Maths tutor
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Consider a right-angled triangle with an inside angle of 30° and a hypotenuse of 8cm. Calculate the length of the opposite side to the 30° angle.

Recall the trigonometry rule SOH/CAH/TOA (Silly Old Hitler Couldn't Advance His Troops Over Africa). Label: Draw the triangle and label the sides with Hyp, Opp & Adj. Choose: Pick which equation to use f...
JL
Answered by Joshua L. • Maths tutor
5071 Views

How do I simplify multiplying potencies with the same base?

If for example you have g square x g cube, all you have to do is add up the potencies and put them in the same base, so in this case it will be g 5 . in the case of dividing potencies all you have to do is t...
GG
Answered by Gonzalo G. • Maths tutor
2435 Views

Find the integral of (sinxcos^2x) dx

To find the Integral of (sinxcos^2x) dx, we must first use our knowledge of integration and differentiation of simple trigonometric functions. Such as Sinx and Cosx. Combined with our knowledge of integratin...
ZS
Answered by Zachary S. • Maths tutor
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