2p^2 -1 =7 Would appreciate some help thank you
Mathematics · Middle School · Tue Nov 03 2020
Answered on
Given:
2p^2 - 1 =7
Determine the value of p.
Solution:
In order to find the value of p, we must first transpose -1 on the other side of the equation, note that when transposing a number, the sign changes.
2p^2 - 1= 7
2p^2 = 7 + 1
2p^2 = 8
Divide both sides by 2 in order to cancel out 2p^2.
p^2 = 4
Now we need to take the square root of both sides in order to find the value of p.
√p^2 = √4
p = 2
Final answer:
p = 2