Matt is showing his work in simplifying (6.2 − 1.6) − 4.4 + 7.8.

Mathematics

1 answer:

melomori [17]3 years ago

3 0

Your answer would be step two. If you follow PEMDAS then you would have to do your parentheise

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10 x 4 ones = how many ones

Alisiya [41]

The product will be 40 I believe?

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3 years ago

Please Help!

natita [175]

$\bf (7x-6)\times (3x^2-4x+5)\implies \begin{array}{cllll} 3x^2-4x+5\\ \times 7x\\\cline{1-1} 21x^3-28x^2+35x \end{array}~~ +~~ \begin{array}{cllll} 3x^2-4x+5\\ \times -6\\\cline{1-1} -18x^2+24x-30 \end{array} \\\\\\ 21x^3-28x^2+35x~~+~~(-18x^2+24x-30)\implies \boxed{21x^3-46x^2+59x-30}$