Question

2. Find the product and verify the result for x = 1 and y = 2 of the following polynomials:
(3x+ 4y) (3x - 4y) (9x square +16 y square)​

Answer 1

Answer:

hope it helps.....

Step-by-step explanation:

3x+4y=16

Squaring both sides

=>(3x+4y)

2

=256

=>9x

2

+16y

2

+2(3x)(4y)=256

=>9x

2

+16y

2

+24xy=256

=>9x

2

+16y

2

=256−24×4

=>9x

2

+16y

2

=256−96

=>9x

2

+16y

2

=160

Answer 2

Answer:

Step-by-step explanation:

3x+4y=16

Squaring both sides

=>(3x+4y)

2

=256

=>9x

2

+16y

2

+2(3x)(4y)=256

=>9x

2

+16y

2

+24xy=256

=>9x

2

+16y

2

=256−24×4

=>9x

2

+16y

2

=256−96

=>9x

2

+16y

2

=160