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3 years ago

Which polynomial represents the difference below? (8x^2 + 9) - (3x^2 + 2x + 5)

Mathematics

2 answers:

MariettaO [177]3 years ago

5 0

Answer: The correct option is (A) $5x^2-2x+4.$

Step-by-step explanation: We are given to select the polynomial that represents the following difference :

$D=(8x^2+9)-(3x^2+2x+5)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

To find the required difference, we need to subtract the coefficients of the same powers of the unknown variable x.

From (i), we get

$D\\\\=(8x^2+9)-(3x^2+2x+5)\\\\=8x^2+9-3x^2-2x-5\\\\=(8-3)x^2-2x+(9-5)\\\\=5x^2-2x+4.$

Thus, the required difference is $5x^2-2x+4.$

Option (A) is CORRECT.

astraxan [27]3 years ago

3 0

the answer is......... A

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lidiya [134]

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