Differentiate f(x) = (3x + 5)(4x - 7)
A good way to approach this question is to first expand the brackets . This gives 12x2 - 21x + 20x - 35 (remember to take the negative seven into account). We can then simplify this to give 12x2 - x - 35 . Finally, we use the standard rules for differentiation to give f'(x) = 24x - 1
AD
Related Maths A Level answers
All answers ▸I struggle to simplify the following equation: (see answer)
Two masses A and B, 2kg and 4kg respectively, are connected by a light inextensible string and passed over a smooth pulley. The system is held at rest, then released. Find the acceleration of the system and hence, find the tension in the string.
The quadratic equation (k+1)x^2 + (5k-3)x + 3k = 0 has equal roots, find the possible values of the real number k.
Solve for 0<=θ<π, the equation sin3θ-(sqrt3)cosθ=0 (C2)