1.Add the two polynomials
-7x³y + 4x²y² - 2 and 4x³y + 1 - 8x²y²
2. Subtract 4x³ - 5x - 8 from 6x² - 3x + 8
Show your sulotion
-7x³y + 4x²y² - 2 and 4x³y + 1 - 8x²y²
2. Subtract 4x³ - 5x - 8 from 6x² - 3x + 8
Show your sulotion
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Answers & Comments
Answer:
1. 11x³y - 4x²y² - 1
2. 4x³ - 6x² - 2x - 16
1. (-7x³y + 4x²y² - 2) + (4x³y + 1 - 8x²y²)
= -7x³y + 4x²y² - 2 + 4x³y + 1 - 8x²y²
= -7x³y+4x³y+4x²y²-8x²y²-2+1
= -3x³y-4x²y²-1
2. (4x³ - 5x - 8) - (6x² - 3x + 8)
= 4x³ - 5x - 8 - 6x² - 3x + 8
= 4x³-6x²-5x-3x-8+8
= 4x³-6x²-8x