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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
Choose the correct sum of the polynomials (2x3 - 5x - 1) + (4x3 + 8x + 3).
2x3 - 3x - 4
6x3 + 3x + 2
2x3 + 3x + 2
6x3 - 3x - 2
Solution:
Given polynomials (2x3 - 5x - 1) + (4x3 + 8x + 3).
A mathematical expression of one or more algebraic terms each of which consists of a constant multiplied by one or more variables raised to a non-negative integral power (such as ax2 + bx + c) polynomial.
We know that x terms with equal powers are added correspondingly
Hence, arrange the terms of equal powers of ‘x’
⇒ (2x3 +4x3) + (-5x + 8x) + (-1 + 3).
⇒ 6x3 + 3x + 2
We add polynomials by adding the coefficients of the same power.
The sum of given polynomials is 6x3 + 3x + 2.
Choose the correct sum of the polynomials (2x3 - 5x - 1) + (4x3 + 8x + 3).
Summary:
The correct sum of the polynomials (2x3 - 5x - 1) + (4x3 + 8x + 3) is 6x3 + 3x + 2.
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