Question

Calcule.
√3.(7-2√3)

(2√3-5).(√3+1)

Answer 1

Calcule.

√3.(7-2√3)

=√3.7-√3.(-2√3)

=7√3+2√3.√3

=7√3+2.3

=7√3+6

=6+7√3

(2√3-5).(√3+1)

=2√3.√3+2√3-5.√3-5

=2.3+2√3-5√3-5

=6-3√3-5

=1-3√3.