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olga55 [171]
2 years ago
11

Please help. Are the expressions 8a² - 4b + 7a² and 5(3a² - 2b) + 6b equivalent? Explain your reasoning.

Mathematics
2 answers:
Andrei [34K]2 years ago
8 0

Answer:

<em>Equivalent</em>

Step-by-step explanation:

We have

5(3a^{2}  - 2b) + 6 = 5.3 {a}^{2}  - 5.2b + 6b \\  = 15 {a}^{2}  - 4b

and

8 {a}^{2}  - 4b + 7 {a}^{2}  = 15 {a}^{2}  - 4b

Hence, two expressions are equivalent.

olya-2409 [2.1K]2 years ago
4 0

Answer:

No, they aren't

1: 15a^2-4b

2:15a^2+4b

Step-by-step explanation:

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