IDNLearn.com: Your go-to resource for finding precise and accurate answers. Join our interactive Q&A community and get reliable, detailed answers from experienced professionals across a variety of topics.
Sagot :
To determine which polynomials are listed with their correct additive inverse, we need to check if the sum of each polynomial and its supposed additive inverse equals zero. Recall that the additive inverse of a polynomial [tex]\( P(x) \)[/tex] is a polynomial [tex]\( -P(x) \)[/tex] such that [tex]\( P(x) + (-P(x)) = 0 \)[/tex].
1. Polynomial: [tex]\( x^2 + 3x - 2 \)[/tex], Inverse: [tex]\( -x^2 - 3x + 2 \)[/tex]
[tex]\[ (x^2 + 3x - 2) + (-x^2 - 3x + 2) = x^2 - x^2 + 3x - 3x - 2 + 2 = 0 \][/tex]
This is a correct additive inverse.
2. Polynomial: [tex]\( -y^7 - 10 \)[/tex], Inverse: [tex]\( -y^7 + 10 \)[/tex]
[tex]\[ (-y^7 - 10) + (-y^7 + 10) = -y^7 - y^7 - 10 + 10 = -2y^7 \neq 0 \][/tex]
This is not a correct additive inverse.
3. Polynomial: [tex]\( 6z^5 + 6z^5 - 6z^4 \)[/tex], Inverse: [tex]\( -6z^5 - 6z^5 + 6z^4 \)[/tex]
[tex]\[ (6z^5 + 6z^5 - 6z^4) + (-6z^5 - 6z^5 + 6z^4) = 6z^5 - 6z^5 + 6z^5 - 6z^5 - 6z^4 + 6z^4 = 0 \][/tex]
This is a correct additive inverse.
4. Polynomial: [tex]\( x - 1 \)[/tex], Inverse: [tex]\( 1 - x \)[/tex]
[tex]\[ (x - 1) + (1 - x) = x - x - 1 + 1 = 0 \][/tex]
This is a correct additive inverse.
5. Polynomial: [tex]\( -5x^2 - 2x - 10 \)[/tex], Inverse: [tex]\( 5x^2 - 2x + 10 \)[/tex]
[tex]\[ (-5x^2 - 2x - 10) + (5x^2 - 2x + 10) = -5x^2 + 5x^2 - 2x - 2x - 10 + 10 = -4x \neq 0 \][/tex]
This is not a correct additive inverse.
Given these calculations, the polynomials listed with their correct additive inverses are:
[tex]\[ \boxed{1, 3, 4} \][/tex]
1. Polynomial: [tex]\( x^2 + 3x - 2 \)[/tex], Inverse: [tex]\( -x^2 - 3x + 2 \)[/tex]
[tex]\[ (x^2 + 3x - 2) + (-x^2 - 3x + 2) = x^2 - x^2 + 3x - 3x - 2 + 2 = 0 \][/tex]
This is a correct additive inverse.
2. Polynomial: [tex]\( -y^7 - 10 \)[/tex], Inverse: [tex]\( -y^7 + 10 \)[/tex]
[tex]\[ (-y^7 - 10) + (-y^7 + 10) = -y^7 - y^7 - 10 + 10 = -2y^7 \neq 0 \][/tex]
This is not a correct additive inverse.
3. Polynomial: [tex]\( 6z^5 + 6z^5 - 6z^4 \)[/tex], Inverse: [tex]\( -6z^5 - 6z^5 + 6z^4 \)[/tex]
[tex]\[ (6z^5 + 6z^5 - 6z^4) + (-6z^5 - 6z^5 + 6z^4) = 6z^5 - 6z^5 + 6z^5 - 6z^5 - 6z^4 + 6z^4 = 0 \][/tex]
This is a correct additive inverse.
4. Polynomial: [tex]\( x - 1 \)[/tex], Inverse: [tex]\( 1 - x \)[/tex]
[tex]\[ (x - 1) + (1 - x) = x - x - 1 + 1 = 0 \][/tex]
This is a correct additive inverse.
5. Polynomial: [tex]\( -5x^2 - 2x - 10 \)[/tex], Inverse: [tex]\( 5x^2 - 2x + 10 \)[/tex]
[tex]\[ (-5x^2 - 2x - 10) + (5x^2 - 2x + 10) = -5x^2 + 5x^2 - 2x - 2x - 10 + 10 = -4x \neq 0 \][/tex]
This is not a correct additive inverse.
Given these calculations, the polynomials listed with their correct additive inverses are:
[tex]\[ \boxed{1, 3, 4} \][/tex]
Your participation means a lot to us. Keep sharing information and solutions. This community grows thanks to the amazing contributions from members like you. Find the answers you need at IDNLearn.com. Thanks for stopping by, and come back soon for more valuable insights.