2 years ago

Evaluate the expression for x =5 and y= 1 (x-7y)² pretty confused

Mathematics

2 answers:

Ghella [55]2 years ago

7 0

Answer:

49y^2+y-25=0

Step-by-step explanation:

(5_7y)^2=25-49y^2

y=25-49y^2=49y^2+y-25=0

sveticcg [70]2 years ago

5 0

Answer:

-4

Step-by-step explanation:

So since x=5 and y= 1 the new expression would be 1(5-7) to the second power. Using pemdas, 5-7 is -2. -2 to the second power is -4. negative 4 times 1 is negative 4.

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Juliette [100K]

$\frac{x}{13} -5=\frac{25}{26}$ Add 5 on both sides

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