The sum of \({ 5x }^{ 2 };-7x^{ 2 };8x^{ 2 };11x^{ 2 }\ and\ -9x^{ 2 }\) is ___________ 

The area of a rectangle with length \(2l^{ 2 }m\) and breadth \(3l^{ 2 }m\) is_______________________

The value of the polynomial f(x) = 6x - 3x²+9 when x = -1 is _____________________

Divide x³-4x²+6x by "x" the result is _____________________

Degree of the linear polynomial is ________

Factorise the following : 25m^-2-16n²

Factorise the following : x⁴ - 9x²

Solve using the method of substitution.
5x - y = 5, 3x +y = 11

Find the value of s for the following system of equa~on has infinitely many
solutions. 2x - 3y = 7; (s +2) x - (2s + 1)y = 3(2s -1)

Solve by cross multiplication method.
37a + 29b = 45; 29a + 37b = 21

The perimeter of a triangle is 8m² - 9m+ 7. If the two sides of the triangel be m² - m + 6 and 3m² - 2m - 4, find the third side.

The area of a rectangle is x⁴ + 9x² + 20 sq. units and its length is x² + 4 units. Find its breadth in term of x.

Expland the following using identities : (4m-3m)²

Expland the following using identities (4a + 3b) (4a - 3b)

Factorise 6x²+ 17x + 12

Find the quotient and remainder when  5x³ - 9x² + 10x + 2 is divided by x + 2 using synthetic division

Find the quotient and remainder when 4x³ + 6x² + 7x + 2 is divided by x - 2

Find the quotient and remainder when 5x³ + 7x² + 3x + 2 is divided by 3x + 2

Factorise  2x³- x² - 12x - 9 into linear factors