Question

Subtract 6x² – 5y² + 7y – 4 from 8² – 5xy + 9y² + 6x - 4y

Solution

We know that subtraction of a number is the same as addition of its additive inverse. We have
8x²-5xy + 9y²+6x - 4y
6x²- 5y² + 7y - 4
(-) (+) (-) (+)
__________________________
2x²-5xy + 14y²+6x -11y + 4

Some More Questions From Algebraic Expressions and Identities Chapter

write two terms which are like
(i) 7xy (ii) 4mn² (iii) 21.

Identify the terms, their coefficients for each of the following expressions.
1 + x + x²

3 - pq + pr - rp

03.a - 0.6ab + 0.5b

Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories?

x + y, 1000, x + x²+x³+x^4,7 + y +5x, 2y - 3y²+4y² , 4z -15x², ab +bc + cd +da, p²q + pq², 2p + 2q.

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Algebraic Expressions And Identities

Subtract 6x² – 5y² + 7y – 4 from 8² – 5xy + 9y² + 6x - 4y

Some More Questions From Algebraic Expressions and Identities Chapter

write two terms which are like
(i) 7xy (ii) 4mn² (iii) 21.

Identify the terms, their coefficients for each of the following expressions.
1 + x + x²

3 - pq + pr - rp

03.a - 0.6ab + 0.5b

Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories?

x + y, 1000, x + x²+x³+x^4,7 + y +5x, 2y - 3y²+4y² , 4z -15x², ab +bc + cd +da, p²q + pq², 2p + 2q.

Add the following:

ab - bc, bc - ca, ca - ab

Add the following:

a - b + ab, b - c + bc, c -a +ac

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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Algebraic Expressions And Identities

Subtract 6x2 – 5y2 + 7y – 4 from 82 – 5xy + 9y2 + 6x - 4y

Some More Questions From Algebraic Expressions and Identities Chapter

write two terms which are like (i) 7xy (ii) 4mn2 (iii) 21.

Identify the terms, their coefficients for each of the following expressions.1 + x + x2

3 - pq + pr - rp

03.a - 0.6ab + 0.5b

Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories?x + y, 1000, x + x2+x3+x4, 7 + y +5x, 2y - 3y2+4y2 , 4z -15x2 , ab +bc + cd +da, p2q + pq2 , 2p + 2q.

Add the following:ab - bc, bc - ca, ca - ab

Add the following: a - b + ab, b - c + bc, c -a +ac

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Subtract 6x² – 5y² + 7y – 4 from 8² – 5xy + 9y² + 6x - 4y

write two terms which are like
(i) 7xy (ii) 4mn² (iii) 21.

Identify the terms, their coefficients for each of the following expressions.
1 + x + x²

Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories?

x + y, 1000, x + x²+x³+x^4,7 + y +5x, 2y - 3y²+4y² , 4z -15x², ab +bc + cd +da, p²q + pq², 2p + 2q.

Add the following:

ab - bc, bc - ca, ca - ab

Add the following:

a - b + ab, b - c + bc, c -a +ac