4 is what percent of 5 (variable P)
A+B+C+=40
B= A+4
C= 2B
0-(-4)² + 3-2²
(3b-1)(2b+1)=14
fully factorize
9k^2 + 12k -20 = 0
1/(2x-3)+1/(4x+9)=7
find all values of x
x³ + 2x² - 4
factorise
18-11v+v^2=0
5d^2=4(4d-3)