Recent questions tagged algebraic expressions

+2 votes

1 answer

One of the factors of 9x^2 – 4z^2 – 24xy + 16y^2 + 20y – 15x + 10z is

asked Apr 7, 2019 in Class 11 by kratos

+1 vote

1 answer

Simplify the expression and find its value when a = 5 and b = - 3 : 2 (a^2 + ab ) + 3 - ab

asked Apr 7, 2019 by kratos

+2 votes

1 answer

Find the following products: (i) 2a^3 (3a + 5b)

asked Apr 6, 2019 by kratos

+2 votes

1 answer

Evaluate using the identity (a + b)^2 = a^2 + 2ab + b^2 53^2

asked Apr 6, 2019 by kratos

+3 votes

1 answer

Carry out the multiplication of the expressions in each of the following pairs. (i) 4p, q + r (ii) ab, a − b (iii) a + b, 7a^2b^2

asked Apr 5, 2019 by kratos

+2 votes

1 answer

Factorise : a^2 - 23a - 108

asked Apr 4, 2019 by kratos

+3 votes

1 answer

How much does a^2 − 3ab + 2b^2 exceed 2a^2 − 7ab + 9b^2?

asked Apr 3, 2019 by kratos

+1 vote

1 answer

Write all the terms of each of the following algebraic expressions: (i) 3x (ii) 2x – 3

asked Apr 1, 2019 by kratos

+2 votes

1 answer

Solve the following Algebraic Expressions. (a) Subtract 4a − 7ab + 3b + 12 from 12a − 9ab + 5b − 3

asked Mar 29, 2019 by kratos

+3 votes

1 answer

Froctorise: 3ac + 7bc – 3ad – 7bd

asked Mar 29, 2019 by kratos

+3 votes

1 answer

Subtract : (i) -5y^2 from y^2 (ii) 6xy from – 12xy (iii) (a – b) from (a + b)

asked Mar 28, 2019 by kratos

+2 votes

1 answer

What is the value of a so that the equations ax + 2y + 3z = 0, 2x - 3y + 4z = 0, and 5x + 7x - 8z = 0 may be simultaneously true ?

asked Mar 28, 2019 in Class 12 by kratos

+2 votes

1 answer

Identify the like terms in the following algebraic expressions:

asked Mar 28, 2019 by kratos

+3 votes

1 answer

Identify the terms, their coefficients for each of the following expressions: (i) 7x^2yz – 5xy (ii) x^2 + x + 1

asked Mar 27, 2019 by kratos

+1 vote

1 answer

Factorise : a^3 – a^2 + a – 1

asked Mar 26, 2019 by kratos

+1 vote

1 answer

Simplify each of the following: (i) 7x^3y + 9yx^3 (ii) 12a^2b + 3ba^2

asked Mar 26, 2019 by kratos

+3 votes

1 answer

Express the number appearing in the following statements in standard form. (a) The distance between Earth and Moon is 384,000,000 m.

asked Mar 26, 2019 by kratos

+1 vote

1 answer

If P = [(1, 4), (2, 3)], then P^5 – 4P^4 – 7P^3 + 11P^2 is equal to (A) P + 10I (B) P + 5I

asked Mar 25, 2019 in Class 12 by kratos

+3 votes

1 answer

Express each of the following products as a monomials and verify the result for x = 1, y = 2: (-xy^3) × (yx^3) × (xy)

asked Mar 25, 2019 by kratos

+1 vote

1 answer

If sin x + sin^2x = 1, then find the value of cos^12x + 3 cos^10x + 3 cos^8x + cos^6x – 1

asked Mar 24, 2019 in JEE by kratos

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