Question

o resultado de (5-√2)² e`?
a)21
b)29
c)3√2
d)27-10√2

revolva as contas pfvr

Answer 1

$(5- \sqrt{2} )^2=5^2-2.5. \sqrt{2} +( \sqrt{2} )^2=25-10 \sqrt{2} +2=27-10 \sqrt{2}$

letra d)