algebra
posted by mema .
add the following
(8.1x^25.9x7.1)+9.8x^28.1x4.8)

(8.1x^25.9x7.1)+(9.8x^28.1x4.8)=
8.1x^2+(9.8x^2) 5.9x+(8.1x) 7.1+(4.8)=
8.1x^29.8x^2 5.9x8.1x 7.14.8=
1.71x^2 14x 11.9
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