please tell me 2x4 + 3x2square +5÷ ( x+2)
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Answered by
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Step-by-step explanation:
2 × 4 + 3 × 2² + 5 ÷ ( x + 2 )
Multiply the numbers
8 + 3 × 2² + 5 ÷ ( x + 2 )
x + 3 × 4 + 5 ÷ ( x + 2)
x + 3 × 4 + 5
x + 2
Multiply the numbers
8 + 12 + 5
x + 2
Add the numbers
20 + 5
x + 2
Write all numerators above the common denominator
20 ( x + 2 ) + 5
x + 2
Distribute 20 through the parentheses
20x + 40 + 5
x + 2
Add the numbers
20x + 45
x + 2
Here is your answer...
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Answered by
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Answer:
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Step-by-step explanation:
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Factories:
x
3
−3x
2
−9x−5
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Answer
We factorize x
3
−3x
2
−9x−5 the given polynomial as shown below:
x
3
−3x
2
−9x−5
=x
3
+x
2
−4x
2
−4x−5x−5
=x
2
(x+1)−4x(x+1)−5(x+1)
=(x+1)(x
2
−4x−5)
=(x+1)(x
2
−5x+x−5)
=(x+1)[x(x−5)+1(x−5)]
=(x+1)(x−5)(x+1)
=(x−5)(x+1)
2
Hence, x
3
−3x
2
−9x−5=(x−5)(x+1)
2
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