SSLC (English Medium) इयत्ता ७ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Mathematics

Simplify and find the degree of the following expression.

10x² – 3xy + 9y² – (3x² – 6xy – 3y²)

Simplify and find the degree of the following expression.

9a⁴ – 6a³ – 6a⁴ – 3a² + 7a³ + 5a² 

Simplify and find the degree of the following expression.

4x² – 3x – [8x – (5x² – 8)]

The degree of 6x⁷ – 7x³ + 4 is

If p(x) and q(x) are two expressions of degree 3, then the degree of p(x) + q(x) is

Identify the degree of the expression, 2a³bc + 3a³b + 3a³c – 2a²b²c²

If X = 5x² + 7x + 8 and Y = 4x² – 7x + 3, then find the degree of X + Y

Find the degree of (2a² + 3ab – b²) – (3a² – ab – 3b²)

Find the value of w, given that x = 3, y = 4, z = – 2 and w = x² – y² + z² – xyz

Simplify and find the degree of 6x² + 1 – [8x – {3x² – 7 – (4x² – 2x + 5x + 9)}]

The two adjacent sides of a rectangle are 2x² – 5xy + 3z² and 4xy – x² – z². Find the perimeter and the degree of the expression

(−10) × ____ = 20

____ × (−9) = −45

(−15) × 5 = 75

(−100) × 0 × 20 = 0

Two students drew a line segment each. What is the condition for them to be congruent?

Check the following for equality and if they are equal, mention the property.

(8 – 13) × 7 and 8 – (13 × 7)

Check the following for equality and if they are equal, mention the property.

[(– 6) – (+8)] × (– 4) and (– 6) – [8 × (– 4)]

Check the following for equality and if they are equal, mention the property.

3 × [(−4) + (−10)] and [3 × (−4) + 3 × (−10)]

Which property is illustrated by the equation: (5 × 2) + (5 × 5) = 5 × (2 + 5)