Simplify the following expression and find it's value , when x = -1 and y = 2. x2_y+5x2+3y2+6x-9+9x+6y..
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Answer:
According to question,
2x
2
−3y+3x
2
+5x
2
+5x−7−7x+2y
=10x
2
−2x−y−7
At x=−1 and y=2,
10(−1)
2
−2(−1)−2−7
= 10+2−2−7
=3
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Answer:
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