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Choose the correct option. 06 (1) Which of the following is a like term of 7xy?(A) 8xy2 (B)-8xy(C) 16 x2 y 2 (D) 7 x2 y (2) Which of the following is a binomial expression? (A) x (B) zx+y+c (C) x + y (D) 0 (3) The sum of polynomials ab + ac and ab – ac is __________ (2ab, ac, 2ac, ab) (4) Subtracting x 2 - y 2 + z2 from x2 - y 2 - z 2 , the resultant expression is _______ (2x 2 ,2y 2 , -2z 2 ,૦) (5) The product of m 2 , n2 andm 2 n 2 p 2 is _________ .(m4 n 4 p 2 ,m 2 n 2 p 2 , m 2 p 2 , n 2 p 2 ) (6) The product ofଷ ସ xy and ସ ଷ ݔݕ is ____________. (1, ૦, x 2 y 2 , xy) |
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Answer» Step-by-step explanation: (1) Which of the following is a like term of 7xy? (A) 8xy² (B)-8xy(C) 16 x²y² (D) 7 x² y Ans: -8xy option B is correct. Explanation: In polynomial like terms are those having same number of unknown variables. (2) Which of the following is a binomial expression? (A) x (B) zx+y+c (C) x + y (D) 0 Ans: x+y Option C is correct. Explanation: Binomial expression means expression in SUM of two variables . (3) The sum of POLYNOMIALS ab + ac and ab – ac is __________ (2ab, ac, 2ac, ab) Ans:2ab Explanation: =ab+ac+ab-ac cancel +ac with -ac =ab+ab =2ab (4) Subtracting x² - y² + z² from x² - y² - z² , the resultant expression is _______ (2x² ,2y² , -2z² ,0). Ans: -2z² Explanation: =x² - y² - z²-(x² - y² + z²) =x² - y² - z²-x² + y² - z² terms of x² and y² are cancelled = -z²-z² = -2z² (5) The product of m² n² and m² n² p² is _________ .(m⁴n⁴ p² ,m² n² p² , m² p² , n² p² ) Ans:m⁴n⁴ p² Explanation: =m² n²(m² n² p²) =m²+² n²+²p² =m⁴n⁴ p² (6) The product of xy and xy is ____________. (1, 0, x² y² , xy) Ans:x² y² Explanation: =xy(xy) =x² y² Hope it HELPS you. To learn more on brainly: 1) When the polynomial 2x³ + 3x² + 3x – a is divided by x² – 1, the remainder is 5x + b, then the value of under root a+b+6... 2) find the ROOTS of the equation x^2+2x-35=0 are |
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