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(Can someone help it’s due tomorrow) x^2 -3xy x= -7 and y=4

(Can someone help it’s due tomorrow) x^2 -3xy x= -7 and y=4-example-1
User Vulkanino
by
7.7k points

2 Answers

1 vote
x^2 - 3xy = (-7)^2 - 3(-7)(4)

= 49 + 84

= 133

Make sure you remember that (-7)^2 = (-7)(-7) = positive 49
User Neysa
by
8.6k points
6 votes

Answer:

35

Explanation:

Substitute every detail given

(-7)^2 -3(-7)(4)

-49 - (-21) × 4

-49 + 84

35

User Abul Hasnat
by
8.4k points

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