Differentiate 5x^2 - 7x +9
The general rule for differentiation is multiply by the power and decrease the power by one.
So if we take each term individually starting with 5x^2, and multiply by the power giving 10 then reduce the power by one hence 10x. Similarly for the next term, multiply by 1 and then reduce the power giving -7. When differentiating a constant term, as x is to the power of zero, when you multiply it by the power it will be zero. Thus leaving us with the answer of 10x-7
RG
Related Maths Scottish Highers answers
All answers ▸Express '2x^2 + 8x + 30' in the form 'a(x+b)^2 + c'
The equation x^2 + (k-5)x + 1 = 0 has equal roots. Determine the possible values of k.
Integrate lnx with respect to x
Find an equation for the straight line AB , giving your answer in the form px+qy=r, where p, q and r are integers. Given that A has co-ordinates (-2,4) and B has co-ordinates (8,-6)