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17 votes
Find the error (-8x^2y^2)^2= -64x^4y^4

User Dpyro
by
3.5k points

2 Answers

5 votes

Answer:

64 shouldnt be negative anymore

Explanation:

(-8x^2y^2)^2 = -64x^4y^4

when exapnding the left side it would be...

(-8x^2y^2)^2

Apply exponent rule (-a)^n = a^n

→ (8x^2y^2)^2

→ (8^2)(x^2)^2

→ (8^2) = 64

→ 64(x^2)^2 = 64x^4

Hope this helps. Let me know if you have any questions !

Have a nice rest of you day :)

User Ildjarn
by
2.9k points
6 votes

Answer:


(-8)^2\\eq-64

Explanation:

Using the distributive property to expand, we have


(-8x^2y^2)^2=(-8)^2(x^2)^2(y^2)^2.

Squaring each term, we have


(-8x^2y^2)^2=64x^4y^4.

The mistake was that
8^2=64, not
-64. Using the fact that
8^2=64, the right answer would be


\boxed{64x^4y^4}.

User Andrew Lynch
by
2.9k points