Question

Pls solve the following:
(1.7 x -2.5 y)(2y+3x+4)- 7.8 x2-10y

Answer 1

Answer:

- ( 4.1xy+2.7x²+ 5.0y²+3.2+10y)

Step-by-step explanation:

(1.7 x -2.5 y)(2y+3x+4)- 7.8 x2-10y

3.4xy + 5.1x² + 6.8 - 5.0y²-7.5xy-10.0 - 7.8x²-10y

-4.1xy-2.7x²- 5.0y²-3.2-10y

- ( 4.1xy+2.7x²+ 5.0y²+3.2+10y)