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 ▸

x^2-12x+20=0 Find x


Explain the use of the quadratic formula to solve quadratic equations.


The sides of a right triangle are equal to A=3 cm, B=4 cm. The hypotenuse of a second triangle similar to the first one is 15 cm. Find sides of the second triangle.


Find the roots of the following function: f(x)= 3*(x-1)^2 - 6.