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25-08-2022
Mathematics

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Evaluate the expression for x=-5 and y=3

1. 4x^2 -xy +5y^2

2. |3x|-6|x+4y|

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25-08-2022

Answer:

1. 160

2. 18

Step-by-step explanation:

Replace variables 4(-5)^2-(-5)(3)+5(3)^2

simplify 100+15+45

= 160

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