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aleksandr82 [10.1K]
3 years ago
14

4x +5 (3x2-x) - (1+ x + 6x2) i do i solve this

Mathematics
1 answer:
gavmur [86]3 years ago
7 0

Answer: 9x^2-2x-1

Step-by-step explanation: hope this helps!

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since this is a multiplication, all the numerators are just factors of the product numerator and all denominators are just factors of the product denominator, so we can simply reorder them some, without changing the product.


\bf \cfrac{7}{8}\times \cfrac{4}{15}\times \cfrac{3}{7}\implies \cfrac{7}{7}\times \cfrac{4}{8}\times \cfrac{3}{15}\implies \cfrac{1}{1}\times \cfrac{1}{2}\times \cfrac{1}{5}\implies \cfrac{1\cdot 1\cdot 1}{1\cdot 2\cdot 5}\implies \cfrac{1}{10}

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These two numbers can be 6,60 or 12,30

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