Answer the following problems. Show your solution.
1. What must be added to 27x²-32x+40 to obtain 56x²-19x+72?
1. What must be added to 27x²-32x+40 to obtain 56x²-19x+72?
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Answer:
29x²+13x+32
Step-by-step explanation:
56x²-19x+72
- 27x²-32x+40
=29x²+13x+32
What must be added to 27x²-32x+40 to obtain 56x²-19x+72?
Solution:
To find the sum we need to subtract each expression.
So...
(56x²-19x+72) - (27x²-32x+40)
= 29x² + 13x + 32
Check:
(29x² + 13x + 32) + (27x²-32x+40)
= 56x²-19x+72
Answer: 29x² + 13x + 32
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