(3-2square of 7(3+2square of 7
can someone help me please. This must turn in tonight
(3-2sqrt7)(3+2sqrt7)
is of the form
(a-b)(a+b)
which equals a^2 - b^2.
That means the answer is 9 - 28 = -19
can someone help me please. This must turn in tonight
is of the form
(a-b)(a+b)
which equals a^2 - b^2.
That means the answer is 9 - 28 = -19