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Mathematics 19 Online
OpenStudy (loisvanpaige):

Simplify the product. (2 + sqrt 10)(2 – sqrt 10)

OpenStudy (loisvanpaige):

@Hero ? @hartnn ?

OpenStudy (anonymous):

Okay I got -5.98..Does that sound correct or nah

OpenStudy (loisvanpaige):

actually yes that does sound correct!

OpenStudy (loisvanpaige):

how did u get that tho?

OpenStudy (anonymous):

Actually the answer is -6

OpenStudy (anonymous):

the square root of 10 is 3.16227766 by a calculator. so 2+ 3.16227766 is 5.16227766. Then 2 -3.16227766 = -1.16227766 which multiplied is -which when you round is -5.999999 so when rounding, it is -6

OpenStudy (anonymous):

I hope I helped! :) Become a fan and give a medal for more help when you need it (:

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