Question

All the formulas for chapter 2 polynomials for class 9 th

Answer 1

Answer:

(a + b)²= a²+ 2ab + b²

(a – b)² = a² – 2ab + b²

(a + b) (a – b) = a² -b²

(x + a) (x + b) = x² + (a + b) x + ab.

(x + a) (x – b) = x²+ (a – b) x – ab.

(x – a) (x + b) = x² + (b – a) x – ab.

Answer 2

Answer:

Monomial3,2x,23yetc.

Binomial(2x+3y),(3x−2y)etc.

Trinomialx2+4x+5etc.x2+4x+5etc.

Linear Polynomialx+2,3x+5etc.

Quadratic Polynomialax2+bx+cetc.ax2+bx+cetc.

Cubic Polynomialx3+4x2+5etc.

Biquadratic Polynomialx4+5x3+2x2+3

Step-by-step explanation:

Hope this will help you...