Which of the following polynomials are quadratic

1 answer:

4 0

Step-by-step explanation:

4x^2+3x+1 and x^2+4x are quadratic

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Elan Coil [88]

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Step-by-step explanation:

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natulia [17]

Answer:

(A) 21

Step-by-step explanation:

5x-15 needs to equal 90 since it is a right angle and 21 makes that true

$(5*21)=105\\105-15=90$

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Zepler [3.9K]

Answer:

$18.Hope it helps.....

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Orlov [11]

Answer:

11(7 + 4) = 11 × 7 + 11 × 4

Step-by-step explanation:

11(7 + 4) = _ x 7 + 11 x _

use distributive property:

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lidiya [134]

The answer to the question is 8.25

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