From the sum of 5x² – 7x + 4 and -3x² + 5x + 2 subtract x² + x + 1.
Answers
Answered by
4
Answer:
=7x²-x+5
Step-by-step explanation:
{(5x²-7x+4)+(3x²+5x+2)}-(x²+x+1)
={5x²-7x+4+3x²+5x+2}-x²-x-1
={8x²-2x+6}-x²-x-1
=8x²-2x+6-x²-x-1
=7x²-x+5
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Answered by
0
Answer:
3x
2
−1+5x−[(5x
2
−7x+4)+(2x−5x
3
+1)]
= 3x
2
−1+5x−[5x
2
−5x+5−5x
3
]
= 3x
2
−1+5x−5x
2
+5x−5+5x
3
=−2x
2
+10x−6+5x
3
= 5x
3
−2x
2
+10x−6
Step-by-step explanation:
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