Adding and Subtracting Polynomials Answers
Adding which terms to 3x2y would result in a monomial? Check all that apply.3xy–12x2y2x2y27xy2–10x24x2y3x3
x + 20x – 1803x + 203x – 180
Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. Use the drop-down menus to identify the steps Lorne used to find the difference.
combined like termsgrouped like termswrote as addition of the additive inversewrote terms as addition of opposite
combined like termsgrouped like termswrote as addition of the additive inversewrote terms as addition of opposite
combined like termsgrouped like termswrote as addition of the additive inversewrote terms as addition of opposite
combined like termsgrouped like termswrote as addition of the additive inversewrote terms as addition of opposite
associative propertyclosure propertycommutative property
What is the sum of the given polynomials in standard form?(x2 – 3x) + (–2x2 + 5x – 3)
Which polynomials are listed with their correct additive inverse? Check all that apply.x2 + 3x – 2; –x2 – 3x + 2 –y7 – 10; –y7 + 10 6z5 + 6z5 – 6z4; (–6z5) + (–6z5) + 6z4x – 1; 1 – x(–5x2) + (–2x) + (–10); 5x2 – 2x + 10
Cory writes the polynomial x7 + 3x5 + 3x + 1. Melissa writes the polynomial x7 + 5x + 10. Is there a difference between the degree of the sum and the degree of the difference of the polynomials?
[___]x2y3 + [___]xy2 + [___]y
11
The sum of two polynomials is 10a2b2 – 8a2b + 6ab2 – 4ab + 2. If one addend is –5a2b2 + 12a2b – 5, what is the other addend?
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