Question

using identities find :
(3x+2) (3x+5)

Answer 1

Given =》

▪︎(3x+2)(3x+5)

Explanation =》

▪︎(3x+2)(3x+5)

= 3x(3x+5)+2(3x+5)

=9x ²+15x+6x+10

= 9x²+21x+10

= 9x²+(15+6)x+10

= 9x²+15x+6x+10

= 3x(3x+5)+2(3x+5)

= (3x+5)(3x+2)

= x= -5/3, x= -2/3

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Answer 2

Answer:

9x²+30x+10

Step-by-step explanation:

(3x+2)(3x+5)

(3x)²+(2+5)3x+2×5

9x²+(10)3x+10                      [Identity:  (x+a)(x+b)=x²+(a+b)x+ab]

9x²+30x+10