Question

Simplify.
(a) 30 + 42
(c) 18 + 28 + 3
(e) 30 - (-2)​

Answer 1

Answer:

3² + 4² = 9 + 16 = 25 (Correct answer is 25)

1³ + 2³ + 3³ = 1 + 8 + 27 = 36(Correct answer is 36)

3³-(-2³) = 27-(-8) = 27 + 8 = 35(Correct answer is 35)

Answer 2

Answer:

$(a) \: {3}^{2} + {4}^{2} = \: 9 + 16 \: = \: 25 \\ (b) \: {1}^{3} + {2}^{3} + {3}^{3} = \: 1 + 8 + 27 = \: 36 \\ (c) \: {3}^{3} - ( { - 2}^{3} ) = \: 27 + 8 \: = \: 35$