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PLSSSS HELP ME I HAVE TRIED SOLVING THIS SOOO MANY TIMES
MY ANSWER:
-32 (Wrong)
Find the value of the polynomial: 7x^2y−2xy^2−6x^2y+3xy^2−xy+8 for x=−2, y=4

Sagot :

ChoiSungHyunidn

Step-by-step explanation:

7x^(2y) - 2xy² - 6x^(2y) + 3xy² - xy + 8

= x^(2y) + xy² - xy + 8.

When x = -2 and y = 4, we have:

(-2)^(8) + (-2)(4²) - (-2)(4) + 8

= 256 - 32 + 8 + 8

= 240.

There is ambiguity between x^(2y) and x²y written in your question.

Ackahedem582idn

Answer:

The answer is 0.

Step-by-step explanation:

x = -2 , y = 4

7(-2)²(4) - 2(-2)(4)² - 6(-2)²(4) + 3(-2)(4)² - (-2)(4) + 8

112 + 64 - 96 - 96 + 8 + 8

176 - 192 + 16 = 0

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