[tex](2x - 7)(5 + 3x)[/tex]
[tex](3x - 5)(8 + 3x)[/tex]
[tex](2x - 5y)(x + 3y)[/tex]
[tex](x - 3y)(5x + 3y)[/tex]
[tex](2y - 5x)(x + 3y)[/tex]
bantu jawab
1. (2x - 7)(5 + 3x)
= 10x + 6x² - 35 - 21x
= 6x² + (10x - 21x) - 35
= 6x² + (-11x) - 35
= 6x² - 11x - 35
2. (3x - 5)(8 + 3x)
= 24x + 9x² - 40 - 15x
= 9x² + 9x - 40
3. (2x - 5y)(x + 3y)
= 2x² + 6xy - 5xy - 15y²
= 2x² + xy - 15y²
4. (x - 3y)(5x + 3y)
= 5x² + 3xy - 15xy - 9y²
= 5x² - 12xy - 9y²
5. (2y - 5x)(x + 3y)
= 2xy + 6y² - 5x² - 15xy
= -5x² - 13xy + 6y²
[answer.2.content]
