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glogaming16
19.09.2021 •
Mathematics
Please help me solve the above correctly and I will mark you as brainliest
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Ответ:
Step-by-step explanation:
Sum = 4x³ - 3x² + 3x + 8 + (6x³ - 7x² + 4x) + (-8x³ + 7x²) [write the terms as given by the quetion and group like terms]
⇒ Sum = (4x³ + 6x³ - 8x³) + (- 3x² - 7x² + 7x²) + ( 3x + 4x) + 8 [complete the addition of like terms]
∴ sum = 2x³ - 3x² + 7x + 8
Ответ:
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
Ответ:
Answer c.