Please help me solve the above correctly and I will mark you as brainliest
2 answers:
<h2>
Answer: 2x³ - 3x² + 7x + 8</h2>
Step-by-step explanation:
Sum = 4x³ - 3x² + 3x + 8 + (6x³ - 7x² + 4x) + (-8x³ + 7x²) <em>[write the terms as given by the quetion and group like terms]</em>
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⇒ Sum = (4x³ + 6x³ - 8x³) + (- 3x² - 7x² + 7x²) + ( 3x + 4x) + 8 <em> [complete the addition of like terms]</em>
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∴ sum = 2x³ - 3x² + 7x + 8
Answer:
2x³ - 3x² + 7x + 8
Step-by-step explanation:
We require to add
4x³ - 3x² + 3x + 8 + 6x³ - 7x² + 4x - 8x³ + 7x² ← collect like terms
= (4 + (6 - 8)x³ + (- 3 - 7 + 7)x² + (3 + 4)x + 8
= 2x³ + (- 3)x² + 7x + 8
= 2x³ - 3x² + 7x + 8
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