x^2-8x-20 = 0
18-4÷2×3
4/x + 7 = x
( $q^{2}$ *$c^{2}$* $a^{2}$* $p^{2}$- $q^{2}$* $a^{4}$*$c^{2}$)/ ($c^{4}$* $a^{4}$* $p^{2}$)
solve a x-1 find the remainder when 2x^3+3x^2-17x-30
Solve the system :
3x + 4y = -22 and -2x + 3y = -8
4x + 5 = 29 -2x
lcm of 5 10 and 3
lcm of 9 and 12
Peter missed the 7:30 a.m. bus by 5 minutes. The next bus is due at 8:15 a.m. How long will Peter have to wait for the next bus?
