1) To add the two polynomials, we simply add the coefficients of the like terms:
(x² + 3x + 10) + (x + 2) = x² + (3x + x) + (10 + 2)
Combining like terms, we get:
x² + 4x + 12
Therefore, the sum of (x²+3x+10) and (x+2) is x² + 4x + 12.
2) To find the product of (3x²+x-2) and (x-1), we can use the distributive property of multiplication as follows:
(3x²+x-2)(x-1) = 3x²(x-1) + x(x-1) - 2(x-1)
Simplifying each term, we get:
= 3x³ - 3x² + x² - x - 2x + 2
= 3x³ - 2x² - 5x + 2
Therefore, the product of (3x²+x-2) and (x-1) is equal to 3x³ - 2x² - 5x + 2.
3) To add the polynomials (10x² + 4x - 14) and (2x - 2), we simply add the coefficients of the like terms:
(10x² + 4x - 14) + (2x - 2) = 10x² + (4x + 2x) + (-14 - 2)
Simplifying the expression, we get:
= 10x² + 6x - 16
Therefore, the sum of the two polynomials is 10x² + 6x - 16.
4) The expression (32 x²-20x+4) can be factored as follows:
4(8x²-5x+1)
The trinomial 8x²-5x+1 cannot be factored further using integers, so this is the final factored form of the expression
5) To divide (25x²-1) by (5x + 1), we can use long division as follows:5x + 1 | 25x² + 0x - 1
- (25x² + 5x)
__________
-5x - 1
-(-5x - 1)
________
0
Therefore, the quotient is 5x - 1 and the remainder is 0. So we have:
(25x²-1)÷(5x + 1) = 5x - 1
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Answers & Comments
1) To add the two polynomials, we simply add the coefficients of the like terms:
(x² + 3x + 10) + (x + 2) = x² + (3x + x) + (10 + 2)
Combining like terms, we get:
x² + 4x + 12
Therefore, the sum of (x²+3x+10) and (x+2) is x² + 4x + 12.
2) To find the product of (3x²+x-2) and (x-1), we can use the distributive property of multiplication as follows:
(3x²+x-2)(x-1) = 3x²(x-1) + x(x-1) - 2(x-1)
Simplifying each term, we get:
= 3x³ - 3x² + x² - x - 2x + 2
= 3x³ - 2x² - 5x + 2
Therefore, the product of (3x²+x-2) and (x-1) is equal to 3x³ - 2x² - 5x + 2.
3) To add the polynomials (10x² + 4x - 14) and (2x - 2), we simply add the coefficients of the like terms:
(10x² + 4x - 14) + (2x - 2) = 10x² + (4x + 2x) + (-14 - 2)
Simplifying the expression, we get:
= 10x² + 6x - 16
Therefore, the sum of the two polynomials is 10x² + 6x - 16.
4) The expression (32 x²-20x+4) can be factored as follows:
4(8x²-5x+1)
The trinomial 8x²-5x+1 cannot be factored further using integers, so this is the final factored form of the expression
5) To divide (25x²-1) by (5x + 1), we can use long division as follows:5x + 1 | 25x² + 0x - 1
- (25x² + 5x)
__________
-5x - 1
-(-5x - 1)
________
0
Therefore, the quotient is 5x - 1 and the remainder is 0. So we have:
(25x²-1)÷(5x + 1) = 5x - 1