Home
Class 8
MATHS
Find the product. (i) (5-2x)(3+x) (ii) (...

Find the product. (i) `(5-2x)(3+x)` (ii) `(x+7y)(7x-y)` (iii) `(a^2+b)(a+b^2)` (iv) `(p^2-q^2)(2p+q)`

Text Solution

Verified by Experts

`(i) (5 - 2x)(3 + x)`
`= 5(3 + x) - 2x(3 + x)`
`= 15 + 5x - 6x - 2x^2`
`= 15 - x - 2x^2`
`(ii) (x + 7y)(7x - y)`
`= x(7x - y) + 7y(7x - y)`
`= 7x^2 - xy + 49xy - 7y^2`
`= 7x^2 + 48xy - 7y^2`
...
Promotional Banner

Topper's Solved these Questions

  • ALGEBRAIC EXPRESSIONS AND IDENTITIES

    NCERT ENGLISH|Exercise EXERCISE 9.2|5 Videos

  • ALGEBRAIC EXPRESSIONS AND IDENTITIES

    NCERT ENGLISH|Exercise EXERCISE 9.3|5 Videos

  • ALGEBRAIC EXPRESSIONS AND IDENTITIES

    NCERT ENGLISH|Exercise EXERCISE 9.5|8 Videos

  • COMPARING QUANTITIES

    NCERT ENGLISH|Exercise EXERCISE 8.1|6 Videos

Similar Questions

Explore conceptually related problems

Find the following products: (i) (z^2+2)(z^2-3) (ii) (3x-4y)(2x-4y) (iii) (3x^2-4x y)(3x^2-3x y) (iv) (x+1/5)(x+5)

Find the following products: (i) (x+2)(x+3) (ii) (x+7)(x-2) (iii) y-4)(y-3) (iv) (y-7)(y+3) (vi) (2x-3)(2x+5) (vii) (3x+4)(3x-5)

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+3/2)(y^2-3/2) (v) (3-2x)(3+2x)

Find the following products: (i) (y^2-4)(y^2-3) (ii) (x+4/3)(x+3/4) (iii) (3x+5)(3x+11) (iv) (2x^2-3)(2x^2+5)

Find the product of the following binomials; (i) (2x+y)(2x+y) (ii) (a+2b)(a-2b)

Use the identity (x+a)(x+b)=x^2+(a+b)x+ab to find the following products. (i) (x+3)(x+7) (ii) (4x+5)(4x+1) (iii) (4x+5)(4x+1) (iv) (4x+5)(4x-1) (v) (2x+5y)(2x+3y) (vi) (2a^2+9)(2a^2+5) (vii) (xyz-4)(xyz-2)

Use a suitable identity to get each of the following products. (i) (x+3)(x+3) (ii) (2y+5)(2y+5) (iii) (2a-7)(2a-7) (iv) ((3a)-1/2)((3a)-1/2) (v) (1.1m-0.4)(1.1m+04) (vi) (a^2+b^2)(-a^2+b^2) (viI) (6x-7)(6x+7) (vii) (-a+c)(-a+c) (viii) (x/2+(3y)/4)(x/2+((3y)/4) (ix) (7a-9b)(7a-9b)

Find the following products: (i) 7/5x^2y(3/5x y^2+2/5x) (ii) 4/3a(a^2+b^2-3c^2)

Find the product of the binomials: (6x^2-7y^2)(6x^2-7y^2)

Multiply: (5x+3)b y(7x+2) (ii) (2x+8)b y\ (x-3)