solve x^2 >3(x+6) (4 mks)
x2>3(x+6)Firsty expand brackets --> x2>3x+18Then make one side = to 0 ---> x2-3x-18>0Solve the quadratic (x+3)(x-6)>0find the solutions when =0 x=-3 and x=+6Then sketch the graph or draw number line to find the inequality region x<-3x>6
LC
Related Maths GCSE answers
All answers ▸Gavin, Harry and Isabel each earn the same salary. Gavin saves 28% of his salary. Harry spends 3/4 of his salary and saves the rest. The amount Isabel saves:The amount she spends=3:7. Who saves the most?
Solve the simultaneous equations 3x + 2y = 4, 4x + 5y = 17
Dividing Fractions
How do you factorise x^2 - 4?