a^2 = 4 and b^2 = 9, so 4 + 9 = 13.

The numbers are 4 and 8, as 4 + 8 = 12 and 4 × 8 = 32.

|-3| = 3, so |x| + x = 3 - 3 = 0.

The absolute value |x| of -5 is 5.

1/x = 1/(1/2) = 2.

x² + y² = 3² + 4² = 9 + 16 = 25.

2x - 3 = 2(4) - 3 = 8 - 3 = 5.

3x - 2 = 3(4) - 2 = 12 - 2 = 10.

The absolute value of -12 is 12.

The absolute value of -7 is 7.

The product of the roots is given by c/a = 3/1 = 3.

The product of the roots is given by c/a = 10/1 = 10.

The sum of the roots is given by -b/a = 5/1 = 5.

Convert 1/2 to 2/4, then (3/4) + (2/4) = 5/4.

Multiplying three negative ones gives −1.

(−1)^3 = −1.

(−1)² = 1 and (−2)² = 4, so 1 + 4 = 5.

(−1)³ = −1.

(−2)² = 4.

(−5)² = 25.

−7 + (−3) = −10.

(√(49) + √(16)) = 7 + 4 = 11, so 11 / 5 = 2.2, which rounds to 2.

According to BODMAS, 4 × 2 = 8, so 3 + 8 = 11.

3.5 + 2.8 = 6.3.

3√(27) = 3 × 3 = 9.

|−8| = 8 and |−3| = 3, so 8 + 3 = 11.

√(144) = 12 and √(64) = 8, so 12 + 8 = 20.

√(16) = 4 and √(25) = 5, so 4 + 5 = 9.

√4 = 2, 0.25 = 1/4, and 1 is rational. √2 is irrational.

0.125 is equal to 1/8.