R s aggarwal mathematics class 7 Solutions for Chapter 6 algebraic expressions

Exercises in Chapter 6 algebraic expressions Grade 7

Algebraic Expressions Exercise 6A

Algebraic Expressions Exercise 6B

Algebraic Expressions Exercise 6C

Algebraic Expressions Exercise 6D

Questions in Algebraic Expressions Exercise 6A

Add the following expressions:

(3/5)x, (2/3)x, (-4/5)x

Add the following expressions:

2x2 – 3y2, 5x2 + 6y2, -3x2 – 4y2

Add the following expressions:

5x – 2x2 – 8, 8x2 – 7x – 9, 3 + 7x2 – 2x

Add the following expressions:

(8/5)x + (11/7)y + (9/4)xy, (-3/2)x – (5/3)y – (9/5)xy

Add the following expressions:

5a2b, -8a2b, 7a2b

Add the following expressions:

(3/4)x2, 5 x2, -3x2, -(1/4) x2

Add the following expressions:

(2/3)a – (4/5)v + (3/5)c, -(3/4)a – (5/2)b + (2/3)c, (5/2)a + (7/4)b – (5/6)c

Add the following expressions:

(3/2)x3 - (1/4)x2 + (5/3), (-5/4)x3 + (3/5)x2 – x + (1/5), -x2 + (3/8)x – (8/15)

Subtract :

(x – y) from (4y – 5x)

Subtract : X2 from -3x2

Subtract (2a – 3b + 4c) from the sum of (a + 3b – 4c), (4a – b + 9c) and (-2b + 3c – a)

Questions in Algebraic Expressions Exercise 6B

Find the products:

$3 a^{2} \times 8 a^{4}$

Find the products:

$(-4 a b) \times\left(-3 a^{2} b c\right)$

Find the products:

$(2 / 3) x^{2} y \times(3 / 5) x y^{2}$

Find the products:

$(-3 / 4) a b^{3} \times(-2 / 3) a^{2} b^{4}$

Find the products:

$(-1 / 27) a^{2} b^{2} \times(-9 / 2) a^{3} b c^{2}$

Find the products:

$(-3 / 14) x y^{4} \times(7 / 6) x^{3} y$

Find the products:

$2 a^{2} b \times(-5) a b^{2} c \times(-6) b c^{2}$

Questions in Algebraic Expressions Exercise 6C

Find the product:

$2 x^{2}\left(3 x-4 x^{2}\right)$

Find the product: $-17 x^{2}(3 x-4)$

Find the product:

$(7 / 2) x^{2}((4 / 7) x+2)$

Find the product: $(-4 / 27) x y z\left((9 / 2) x^{2} y z-(3 / 4) x y z^{2}\right)$

Questions in Algebraic Expressions Exercise 6D

Find the product: (5x + 7) (3x + 4)

Find the product:

(4x - 3) (2x + 5)

Find the product:

(x - 6) (4x + 9)

Find the product:

(7x + 2y) (x + 4y)

Find the product:

(9x + 5y) (4x + 3y)

Find the product:

(3m – 4n) (2m – 3n)

Find the product:

(0.8x – 0.5y) (1.5x – 3y)

Find the product:

((2/5)x – (1/2)y) (10x – 8y)

Find the product:

((3/4)a + (2/3)b) (4a + 3b)

Find the product:

$\left(3 p^{2}+q^{2}\right)\left(2 p^{2}-3 q^{2}\right)$

Find the product:

$\left(x^{3}-y^{3}\right)\left(x^{2}+y^{2}\right)$

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Chapters in this book

Rational Numbers

Algebraic Expressions

Linear Equations in one variable

Ratio and Proportion

Profit and Loss

Simple Interest

Lines and Angles

Properties of Parallel Line

Properties of Triangles

Reflection and Rotational Symmetry

Three-Dimensional Shapes

Collection and Organisation of Data (Mean, Median, Mode)

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