I. Perform the indicated operation on polynomials using the law of exponents
1. 3x (x2 - 5x + 7)
2. (x + 3)(x + 5)
3. 5x²y3 (2x’y - 3x + 4y5)
4. 12x4 - 16x3 + 8x2 - 4x2
5. (x3 +6x2 + 11x + 6) = (x -- 3)
II. Find the product of the following:
1. (2x + 1)
2. (x - 5)
3. (x2 + 3x-4)
4. (4x + 3y)(4x - 3y)
5. (x + 5y)
1. 3x (x2 - 5x + 7)
2. (x + 3)(x + 5)
3. 5x²y3 (2x’y - 3x + 4y5)
4. 12x4 - 16x3 + 8x2 - 4x2
5. (x3 +6x2 + 11x + 6) = (x -- 3)
II. Find the product of the following:
1. (2x + 1)
2. (x - 5)
3. (x2 + 3x-4)
4. (4x + 3y)(4x - 3y)
5. (x + 5y)
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Answer:
1. 3x÷ [3x^3 - 15x^2 + 21x] ÷3x
= x^2 - 5x + 7
2. x^2 + 5x + 3x + 15
= x^2 + 7x + 15