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What are the two roots of the equation (4x-8)(x-3) = 0?

Since there are two terms multiplying together, when either of them are equal to zero, the total multiplication will also be zero. Ie, 10 x 0 = 0. This means that to find the two roots, we can simply equate ...
DD
Answered by Daniel D. • Maths tutor
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Solve 3x + 6 > 3 - 2x.

3x + 6 > 3 - 2x. Firstly move the numerical terms to one side. 3x + 3 > - 2x. Secondly, move all x terms to the same side. 5x + 3 > 0. Finally, put the numerical and x terms to opposite sides, and d...
DD
Answered by Daniel D. • Maths tutor
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Expand (X+5)(2X+3)

When you are expanding a double bracket you have to multiply each each in one bracket against the two others terms in the other bracket. So starting with X: X times the first term in the other bracket which ...
EM
Answered by Eima M. • Maths tutor
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Solve the differential equation : dy/dx - x^3 -5x = 0

First rearrange the equation dy/dx = x 3 + 5x Then move the dx to the RHS of the equation dy = ( x 3 + 5x)dxThen integrate both sides, with respect to y on the LHS and with respect to x on the RHS (don't for...
OM
Answered by Olivia M. • Maths tutor
4888 Views

Find dy/dx for f(x)=3x^2 +5x

This is a simple differentiation example of a polynomial, where one uses the the standard algorithm - i.e.[nx^n-1] Ina polynomial, one differentiates all parts separately. First Take 3x^2. Multiply by the po...
MR
Answered by Merin R. • Maths tutor
7051 Views