Question

find the product. it is the question of algaebric identity ​

Answer 1

Answer:

Hope you will find it helpful.

Step-by-step explanation:

1) 20 x³y³

2) 12 x²+15 x

3) 12 x²y+15 xy²+ 6 xy

4) x²+14x+45

5) 10x²+6xy+20x+12y

6)12x²+41x+35

7) 27xy+81 x²y²+21y²+63xy³

8) a²+2ab+b²

9) a²-b²

10)a²-2ab+b²

Answer 2

Answer:

Step-by-step explanation:

1) 4xy × 5x²y² = 20x³y³.

2) 3x × ( 4x + 5 )= 12x² + 15x.

3) 3xy × ( 4x + 5y + 2 ) = 12x²y + 15xy² + 6xy .

4) ( x + 5 ) ( x + 9 ) = x (x + 9 ) + 5 ( x + 9 ) = x² + 9x + 5x + 45 = x² + 14x + 45.

5) ( 2x + 4 ) ( 5x + 3y ) = 2x (5x + 3y ) + 4 ( 5x + 3y ) = 10x² + 6xy + 20x + 12y.

6) ( 3x + 5 ) ( 4x + 7 ) = 3x ( 4x + 7 ) + 5 ( 4x + 7 ) = 12x² + 21x + 20x + 35 = 12x² + 41x + 35.

7) ( 9xy + 7y² ) ( 3 + 9xy ) = 9xy ( 3 + 9xy ) + 7y² ( 3 + 9xy ) = 27xy + 81x²y² + 21y² + 63xy³.

8) (a + b ) ( a + b ) = a (a + b ) + b ( a + b ) = a² + ab + ab + b² = a² + 2ab + b².

9) (a + b ) ( a - b ) = a (a - b ) + b ( a - b ) = a² - ab + ab - b² = a² - b².

10) ( a - b ) ( a - b ) = a (a - b ) - b ( a - b ) = a² - ab - ab + b² = a² - 2ab + b².