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Algebraic Expressions And Identities

Question

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Give five examples of expressions containing one variable and five examples of expressions containing two variables.

Solution

(a) Five examples containing one variable are:

(i) x – 4 (ii) 5 – y (iii) 2x + 5

(iv) 10x + 4 (v) 11 – z

(b) Five examples containing two variables are:

(i) 7x – 2y (ii) 5x + 2y – 10 (iii) 6x + z – 2

(iv) 15y – z (v) 9x – 10z

Some More Questions From Algebraic Expressions and Identities Chapter

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

2p²q²- 3pq + 4, 5 +7pq - 3p²q²

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