If x=7 and y=−3, evaluate the following expression:3x−y2

Mathematics

2 answers:

Simora [160]3 years ago

8 0

3(7)-(3)2 sub in the numbers
21-6=15
the answer is 15

Hoochie [10]3 years ago

7 0

Answer:

Step-by-step explanation:

3x−y2= ? if x= 7 & y= -3

Step 1 insert the numbers where they go:

3(7)-(-3)2=

Step 2 the two negatives become a positive:

3(7)+(3)2=

Step 3 multiply:

21+6=

Step 4 add:

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