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