IDNStudy.com, kung saan ang kuryusidad ay nagtatagpo ng kalinawan. Tuklasin ang malalim na sagot sa iyong mga tanong mula sa aming komunidad ng mga bihasang propesyonal.
Answer:
1. (4x - 5)(x - 3)
first: 4x × x = 4x²
outside: 4x × (-3) = -12x
inside: -5 × x = -5x
last: -5 × (-3) = 15
4x² - 12x - 5x + 15
2. (4x - 4)(x - 4)
first: 4x × x = 4x²
outside: 4x × (-4) = -16x
inside: -4 × x = -4x
last: -4 × (-4) = 16
4x² - 16x - 4x + 16
3. (2x + 2)(3x + 5)
first: 2x × 3x = 6x²
outside: 2x × 5 = 10x
inside: 2 × 3x = 6x
last: 2 × 5 = 10
6x² + 10x + 6x + 10
4. (4x - 2)(3x + 3)
first: 4x × 3x = 12x²
outside: 4x × 3 = 12x
inside: -2 × 3x = -6x
last: -2 × 3 = -6
12x² + 12x - 6x - 6
5. (x - 1)(2x + 5)
first: x × 2x = 2x²
outside: x × 5 = 5x
inside: -1 × 2x = -2x
last: -1 × 5 = -5
2x² + 5x - 2x - 5