alexandrastupid alexandrastupid

07-10-2020
Geography

contestada

factor the following completely

1. ×² -25

2. 2 ×² -15× - 8

3. 3×² + 30× +75

4. ×³ - 27

Respuesta :

0712889gvdv 0712889gvdv

07-10-2020

Answer:

1) x²- 25

x²-5²

(x-5)(x+5)

2) 2x²-15x-8

2x²+x-16x-8

x(2x+1)-8(2x+1)

(2x+1)(x-8)

3) 3x²+30x+75

3(x²+10x+25)

3(x+5)²

4) x³ - 27

x³- 3³

(x-3)(x²+3x+9)

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