Find D when 8x^3-12x^2-2x+D is divided by 2x+1 when the remainder is -2
8x3-12x2-2x+D...(1)
2x+1...(2)
Assume 2x+1=0 so x=-1/2
8x3-12x2-2x+D=-2... when divided by (2)
substitute -1/2 into all X values
rearrange to find D
SW
Related Maths A Level answers
All answers ▸A new sports car accelerates using rockets at 5m/s for 30 seconds from some traffic lights and then decelerate for 45 seconds to a stop.
Expand the expression (1+3x)^1/3 up to the term x^3.
The variables x and y are related by y = 5^x. How do I find the value of x when y is set to 15?
What is a Tree Diagram?