Tutored children of different levels from the age of 5 to 16 in Maths. Specialised in tutoring higher level secondary school mathematics, namely calculus and algebra.
Ball's changing volumeume of a ball $\left(V=(4 / 3) \pi r^{3}\right)$ with respect to the radius whenthe radius is $r=2 ?$
Write an equivalent expression by factoring out the greatest common factor.$$2 t^{2}+8 t$$
Write an equivalent expression by factoring out the greatest common factor.$$9 y^{3}-y^{2}$$
Write an equivalent expression by factoring out the greatest common factor.$$15 x^{2}-5 x^{4}+5 x$$
Write an equivalent expression by factoring out a factor with a negative coefficient.$$-5 x+35$$
Write an equivalent expression by factoring out a factor with a negative coefficient.$$-2 x^{2}+4 x-12$$