Solve the quadratic equation.
(x + 3)^2 = 64
a) x = 5 or -11
b) x = 11 or -5
c) x = ± 3
d) x = ± 11

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Can (2,3 and square root 10) be sides ona right triangle?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.