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djverab [1.8K]
3 years ago
15

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. What is the resulting expression?

Mathematics
2 answers:
siniylev [52]3 years ago
7 0

Factoring the polynomial 4x^4-20x^2-3x^2 + 15 by grouping means separation of the polynomial in two addends, each of them consists of two addends:

4x^4-20x^2-3x^2 + 15=(4x^4-20x^2)+(-3x^2+15).

In first brackets the common factor is 4x^2, in second brackets the common factor is -3.

Then

(4x^4-20x^2)+(-3x^2+15)=4x^2(x^2-5)-3(x^2-5)=(x^2-5)(4x^2-3).

Answer: correct choice is B

Serjik [45]3 years ago
4 0

Answer:

B is correct

Step-by-step explanation:

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