3(5-1)(2*5+1)-(5-2)^2

Question

0

772

1

+28

3*(5-1)*(2*5+1)-(5-2)^2

How untie ?

Professor Apr 28, 2014

+118703

+5

Best Answer

$3\times(5-1)\times(2\times5+1)-(5-2)^2\\ =3\times4\times(10+1)-(3)^2\\ =12\times11-9\\ =132-9\\ =123$

Melody Apr 28, 2014

Melody · Answer 1 · 2014-04-28T11:58:47

$3\times(5-1)\times(2\times5+1)-(5-2)^2\\ =3\times4\times(10+1)-(3)^2\\ =12\times11-9\\ =132-9\\ =123$

.

3*(5-1)*(2*5+1)-(5-2)^2