Posted by Bryan on Tuesday, December 16, 2008 at 11:28am.
your first answer is right except the second term which should be 5x^3.
And writing in scientific notation, when moving decimal to left, exponent is negative, so correct answer will be 1.945*10^-10
I am sorry, your scientific notation is correct. When moving decimal to left exponent is positive.
1.945x10^10
or
1.945*10^-10
1.945*10^-10
or
1.945x10^10
1.945*10^-10
or
1.945x10^10
and 8x^4+5x^3-2x^2+2x-12
is this correct?
yes.
1.945*10^10 and yes your polynomial is correct.
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