x² + 2x + 7
split into two brackets to give the roots
find the composite functions f(g (x)) and g(f (x)) of gaving funcrion
f(x)f(x)=Power[x,2]+1, g(x)=2x
1÷87.135
4356.75 ÷50
(2^2*3^3*5^7)/(2^3*3^4*5^6)
x-1/x = 10
268 X 30
Simplify the expression: 5y – {3y + (2y – 5) – [3 – (2 + 4y)]}