15.7k views
0 votes
Can you please help me solve this equation (-3√7)²+(3√11)²?

User Germmand
by
8.0k points

2 Answers

4 votes

(-3√(7))^(2) + (3√(11))^(2) \\(-3√(7))(-3√(7)) + (3√(11))(3√(11)) \\9√(49) + 9√(121) \\9(7) + 9(11) \\63 + 99 \\162
User Torben Pi Jensen
by
9.4k points
5 votes
(-3√7)^2= 9*7=63 when you raise to the second power, -3 becomes 9
and √7 becomes 7
(3√11)^2=9*11=99
99+63=162
User LefterisL
by
9.0k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories