Question

Find the value of the expression: 70–a^2 for a=–25; 1; 10

Answer 1

• a = -25: -555
• a = 1: 69
• a = 10: -30

Explanation:

Put the value where "a" is in the expression and do the arithmetic.

1. For a = -25: 70 - (-25)² = 70 - 625 = -555
2. For a = 1: 70 - (1)² = 70 - 1 = 69
3. For a = 10: 70 - (10)² = 70 - 100 = -30

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