Question

tell me it's answer
questions no.2, 4, 7, 5 ​

Answer 1

Answer:

2. (2x+3) (4x^2-6x+9)

= 2x (4x^2-6x+9) +3 (4x^2-6x+9)

= 8x^3-12x^2+18x+12x^2-18x+27

= 8x^3+27

4. (3x+4y) (9x^2-12xy+16y^2)

= 3x(9x^2-12xy+16y^2) + 4y (9x^2-12xy+16y^2)

= 27x^3-36x^2y+48xy^2 +36yx^2-48xy^2+64y^3

= 27x^3+64y^3

5. (4xy-1) (16x^2y^2+4xy+1)

= 4xy (16x^2y^2+4xy+1) -1 (16x^2y^2+4xy+1)

= 64x^3y^3+16x^2y^2+4xy-16x^2y^2-4xy-1

= 64x^3y^3 -1

7. (2x^2-1) (4x^4+2x^2+1)

= 2x^2 (4x^4+2x^2+1) -1 (4x^4+2x^2+1)

= 8x^6+4x^4+2x^2-4x^4-2x^2-1

= 8x^6-1

Hope my answer is helpful to you

please like and vote my answer

mark me as brainliest.