Question

suppose x=1 and y = -1 find the value of the following

-5y square + 5x



suppose x=5 and y =2 find the value of the following

-5y square +5x
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Answer 1

Answer:

(a) In case, x = 1 and y = -1

• -5y² + 5x

= -5 × ( -1 )² + 5 × 1

= -5 × 1 + 5 × 1

= -5 + 5

= 0.

Answer for the first one is 0.

(b) In case, x = 5 and y = 2

• -5y² + 5x

= -5 × ( 2 )² + 5 × 5

= -5 × 4 + 5 × 5

= -20 + 25

= 5.

Answer for the second one is 5.

Step-by-step explanation:

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