(7√3 - 3√7)^2
how can I solve it
Answers
Answered by
1
Answer:
Using formula, (a-b) ^2=a^2+b^2-2ab, we get
(7 root3)^2+(3 root7)^2-2*7 root3*3 root7
=49*3+9*7-2*21* root21
=147+63-42 root21
=210-42 root21
=210-192.36
=17.64
Hope it will help you..
Mark the brainliest
Answered by
1
Step-by-step explanation:
(7√3-3√7)'2
=using the formula (a-b) '2=a'2+b'2-2ab
=then, (7√3)'2+(3√7)'2-(2.7√3.3√7)
=(14.√9)+(9.√14)-(2.14√10)
=(14.3)+(9.7)-28√10
=42+63-28√10
=105-28√10
here it's your answer. z follow me and mark me brainliest.
Similar questions