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galben [10]
4 years ago
9

Which statement is true about the polynomial 5s6t2 + 6st9 – 8s6t2 – 6t7 after it has been fully simplified?

Mathematics
1 answer:
n200080 [17]4 years ago
6 0

Choices:

It has 3 terms and a degree of 9.

It has 3 terms and a degree of 10.

It has 4 terms and a degree of 9.

It has 4 terms and a degree of 10.

Answer : It has 3 terms and a degree of 10.

5s^6t^2 + 6st^9 - 8s^6t^2 - 6t^7

Simplify the expression

5s^6t^2  - 8s^6t^2 + 6st^9 - 6t^7

Combine like terms

- 3s^6t^2 + 6st^9 - 6t^7

To find degree we add the exponents 's' and 't' of each term

- 3s^6t^2 -->  degree = 8

6st^9 -->  degree = 10 ( 's' has exponent 1)

- 6t^7 -->  degree = 7

Simplified expression is - 3s^6t^2 + 6st^9 - 6t^7

Highest degree is 10

It has 3 terms and a degree of 10


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