179k views
1 vote
Whats the value of 4x²-3 when x=5, x=10

2 Answers

4 votes
Just replace 5 and 10 in the equation
x = 5, 4(5)^2-3 = 97
x = 10, 4(10)^2-3 = 397
Hope it helped
User BaggersIO
by
5.5k points
4 votes
4(5) to the power of 2 -3
:20 to the power of 2 =400
:400-3=397

4(10) to the power of 2 -3
:40 to the power of 2=1600
:1600-3=1597
User Jisselle
by
6.0k points