Addition and Subtraction of Polynomials Answers
Find each sum.(3n2 – 5n + 6) + (–8n2 – 3n – 2) =
(–4c2 + 7cd + 8d) + (–3d + 8c2 + 4cd) = c2 + cd + d
Find each difference.(–6s2 + 12s – 8) – (3s2 + 8s – 6) =
(5a2 + 4ab – 3b2) – (–5ab + 4b2 + 3a2) = a2 + ab + ( b2)
(0.4k3 – 2.5k) – (2.4k3 + 3k2 – 1.2k) =
Which example illustrates the commutative property of addition for polynomials?
Which example illustrates the associative property of addition for polynomials?
Which expression represents the length, in inches, of the framed picture?x + 10✔ 2x + 10x² + 1010x²
Which expression represents the width of the framed picture?x + 8x² + 8✔ 2x + 88x²
Alissa is framing a rectangular picture with length 10 inches and width 8 inches. Let x represent the width of the frame in inches.
) inches
36
The polynomial –16t2 + vt + h0 models the height, in feet, of a ball t seconds after it is thrown. In this polynomial, v represents the initial vertical velocity of the ball and h0 represents the initial height of the ball.Min throws a baseball from a height of 6 feet with an initial vertical velocity of 30 feet per second. Which polynomial models the height of the ball, in feet?14t² + 6-16t² + 36t-16t² + 6t + 30✔ -16t² + 30t + 6
+
4
Which polynomial represents the difference in the heights of the baseballs t seconds after they are thrown?✔ 10t + 210t + 1050t + 250t + 10
Question text not available
Use what you know about addition and subtraction of polynomials to find the missing term represented by the question mark in each equation.(–4x2 + 6x + 3) + (8x + 5 + ?) = 2x2 + 14x + 8? = -6x² -2x² 2x² ✔ 6x²
(–b3 + 3b2 + 8) – (? – 5b2 – 9) = 5b3 + 8b2 + 17? = ✔ –6b³–4b³4b³6b³
Kendall says the sum of (6x2 + 4xy + 2y2) and (4x2 – 2xy – 3y2) is (10x2 + 2xy – 5y2). What error did Kendall make?
Anna subtracted (7n2 – 5n + 6) from (5n2 + 4n – 9) as shown below.What error did Anna make?
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