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III. Find the product. Kindly show your solution! (5 points each item) 1. (a + 3) (a-5) 2. (b + 4) (2b-3) 3. (2k-5) (k + 3) 4. (2v-1) (V² - Av+7) IV. Essay Explain in a maximum of eight sentences​

Sagot :

MILLARESTRICIA1IN

Answer:

1.)a²-2a-15

2.)2b²+5b-12

3.)2k²+k-15

5.)2v³-2av²+14v-v²+av-7

Step-by-step explanation:

1.)(a+3)(a-5)

a+a-5a+3a-3×5

a²-5a+3a-15

a²-2a-15

2.)(b+4)(2b-3)

b×2b-3b+4×2b-4×3

2b²-3b+8b-12

2b²+5b-12

3.)(2k-5)(k+3)

2k×k+2k×3-5k-5×3

2k²+6k-5k-15

2k²+k-15

4.)(2v-1)(v²-Av+7)

2v(v²-Av+7)-1(v²-Av+7)

2v³-2av²+14v-v²+av-7

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