(i) (3x+4)(3x-5) (i) (3–2x)(3+2x) ii) (3x+5y)(9x² –15xy+ 25 y² ) (iv) (x² -1)(x* +x² +1) (v) (x+3y+5z)(x² +9y° + 25z² – 3xy – 15 yz -5zx)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.5: Other Types Of Equations
Problem 52E
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Q.27
Using appropriate identities find the following products:
(i) (3x+4)(3x-5) (ii) (3–2x)(3+2x) ii) (3x+5y)(9x² –15xy+ 25 y² )
(iv) (x² –1)(x' +x² +1) (v) (x+3y+5z)(x² +9y° + 25z² – 3.xy – 15 yz -5zx)
(vi) (-z+x-2y)(x² +4y° +z° +2xy– 2 yz+ zx)
Transcribed Image Text:Q.27 Using appropriate identities find the following products: (i) (3x+4)(3x-5) (ii) (3–2x)(3+2x) ii) (3x+5y)(9x² –15xy+ 25 y² ) (iv) (x² –1)(x' +x² +1) (v) (x+3y+5z)(x² +9y° + 25z² – 3.xy – 15 yz -5zx) (vi) (-z+x-2y)(x² +4y° +z° +2xy– 2 yz+ zx)
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