Mathematics, 02.02.2020 12:47 vale2652
Ineed to know the coefficient or the a squared term, the coefficient of the ab term, and the coefficient of the b term.
Answers: 3
![\bf \begin{array}{llllll} -2a(a+b-5)&+&3(-5a+2b)&+&b(6a+b-8)\\\\ -2a^2-2ab+10a&+&-15a+6b&+&6ab+b^2-8b \end{array} \\\\[-0.35em] ~\dotfill\\\\ (-2a^2-2ab+10a)+(-15a+6b)+(6ab+b^2-8b) \\\\\\ -2a^2-2ab+10a-15a+6b+6ab+b^2-8b \\\\\\ -2a^2-2ab+6ab+10a-15a+6b-8b+b^2 \\\\\\ \boxed{-2} a^2\boxed{+4} ab-5a\boxed{-2} b+b^2](/tpl/images/0492/9790/108b8.png)
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