6. Write the following cubes in expanded form: (i) ((2x+1)^3) (ii) ((2a-3b)^3) (iii) ([{3over 2}x+1]^3) (iv) ([x-{2over 3}y]^3) Polynomials Exercise 2.4 Previous Next Class 9 Polynomials Exercise 2.4 1. Use suitable identities to find the following products: (i) (x +…
5. Factorise : (i) (4x^2+9y^2+16z^2+12xy-24yz-16xz) (ii) (2x^2+y^2+8z^2-2sqrt 2 xy+4sqrt 2 yz-8xz) Polynomials Exercise 2.4 Previous Next Class 9 Polynomials Exercise 2.4 1. Use suitable identities to find the following products: (i) (x + 4) (x + 10) (ii) (x +…
4. Expand each of the following, using suitable identities: (i) ((x+2y+4z)^2) (ii) ((2x-y+z)^2) (iii) ((-2x+3y+2z)^2) (iv) ((3a-7b-c)^2) (v) ((-2x+5y-3z)^2) (vi) ([{1over 4}a-{1over 2}b+1]^2) Polynomials Exercise 2.4 Previous Next Class 9 Polynomials Exercise 2.4 1. Use suitable identities…
3. Factorise the following using appropriate identities: (i) (9x^2+6xy+y^2) (ii) (4y^2-4y+1) (iii) (x^2-{y^2over 100}) Polynomials Exercise 2.4 Previous Next Class 9 Polynomials Exercise 2.4 1. Use suitable identities to find the following products: (i) (x + 4) (x + 10)…
2. Evaluate the following products without multiplying directly: (i) 103 × 107 (ii) 95 × 96 (iii) 104 × 96 Polynomials Exercise 2.4 Previous Next Class 9 Polynomials Exercise 2.4 1. Use suitable identities to find the following products: (i)…
1. Use suitable identities to find the following products: (i) (x + 4) (x + 10) (ii) (x + 8) (x – 10) (iii) (3x + 4) (3x – 5) (iv) ((y^2+{3over 2})(y^2-{3over 2})) (v) ((3-2x)(3+2x)) Polynomials Exercise 2.4 Previous…
5. Factorise: (i) (p(x)=x^3-2x^2-x+2) (ii) (p(x)=x^3-3x^2-9x-5) (iii) (p(x)=x^3+13x^2+32x+20) (iv) (p(y)=2y^3+y^2-2y-1) Polynomials Exercise 2.3 Previous Next Class 9 Polynomials Exercise 2.3 1. Determine which of the following polynomials has (x + 1) a factor: (i) (x^3+x^2+x+1) (ii) (x^4+x^3+x^2+x+1) …
4. Factorise: (i) (p(x)=12x^2-7x+1) (ii) (p(x)=2x^2+7x+3) (iii) (p(x)=6x^2+5x-6) (iv) (p(x)=3x^2-x-4) Polynomials Exercise 2.3 Previous Next Class 9 Polynomials Exercise 2.3 1. Determine which of the following polynomials has (x + 1) a factor: (i) (x^3+x^2+x+1) (ii) (x^4+x^3+x^2+x+1) (iii) (x^4+3x^3+3x^2+x+1)…
3. Find the value of k, if x – 1 is a factor of p(x) in each of the following cases: (i) (p(x)=x^2+x+k) (ii) (p(x)=2x^2+kx+sqrt 2) (iii) (p(x)=kx^2-sqrt 2 x+1) (iv) (p(x)=kx^2-3x+k) Polynomials Exercise 2.3 Previous Next Class 9 Polynomials…
2. Use the Factor Theorem to determine whether g(x) is a factor of p(x) in each of the following cases: (i) (p(x)=2x^3+x^2-2x-1), (g(x)=x+1) (ii) (p(x)=x^3+3x^2+3x+1), (g(x)=x+2) (iii) (p(x)=x^3-4x^2+x+6), (g(x)=x-3) Polynomials Exercise 2.3 Previous Next Class 9 Polynomials Exercise 2.3…
