Posted by Bryan on Tuesday, December 16, 2008 at 11:28am.
Subtract..
(8x^4+5x^36)(2x^22x+6)
I got 8x^4+5x2x^2+2x12
convert the number to scientific notation.
19,450,000,000
I got 1.945x10^10

Math correct  gr, Tuesday, December 16, 2008 at 11:37am
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

Math correct  gr, Tuesday, December 16, 2008 at 11:39am
I am sorry, your scientific notation is correct. When moving decimal to left exponent is positive.

Math correct  Bryan, Tuesday, December 16, 2008 at 11:41am
1.945x10^10
or
1.945*10^10

Math correct  Bryan, Tuesday, December 16, 2008 at 11:41am
1.945*10^10
or
1.945x10^10

Math correct  Bryan, Tuesday, December 16, 2008 at 11:44am
1.945*10^10
or
1.945x10^10
and 8x^4+5x^32x^2+2x12
is this correct?

Math correct  bobpursley, Tuesday, December 16, 2008 at 12:08pm
yes.

Math correct  gr, Tuesday, December 16, 2008 at 12:16pm
1.945*10^10 and yes your polynomial is correct.
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