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just olya [345]
3 years ago
8

8. 2x2 + 3x when x = 3​

Mathematics
2 answers:
jeyben [28]3 years ago
8 0

Answer:

13

Step-by-step explanation:

2×2=4+3(3)=4+9=13

chubhunter [2.5K]3 years ago
4 0

Answer:

27

Step-by-step explanation:

Substitute x = 3 into the expression

2(3)² + 3(3) = 2(9) + 9 = 18 + 9 = 27

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Answer:

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Step-by-step explanation:


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3 years ago
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Wewaii [24]
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3 years ago
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babymother [125]

Answer:

A. (2i)(8) = d. 16i

B. 16i³ = b. -16i

C. (2i)⁴ = a. 16

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Step-by-step explanation:

A. Multiply 2i by 8 to get 16i, which corresponds to d.

B. The exponent is 3 more than a mulitple of 4 in 16i³, so the answer is negative. -16i corresponds to b.

C. (2i)⁴ has an exponent that is a multiple of 4, so the i isn't needed. 16 corresponds to a.

D. (2i)(8i) simplifies to 2(8) * i². The exponent is 2 more than a multiple of 4, so the answer is negative, without an i. -16 corresponds to c.

8 0
3 years ago
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gogolik [260]

Answer:

Step-by-step explanation:

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