If x2 = 30, what is the value of x?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

Combine the information in the problem and the chart using the average balance method to solve the problem.