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4 years ago

15

How is multiplying a whole number by a mixed number the same as multiplying two mixed numbers? Please help.

1 answer:

torisob [31]4 years ago

4 0

This is a prediction however, a whole number 5 multiplied by a mixed number 1 1/2 is the same as multiplying 2 mixed numbers 1 1/2 x 1 1/2 the same because if you turn this 1 and 1/2 into an improper fraction ( 3/2 it's the same as 5 which can be used as 5/1 so then the improper fraction 3/2 multiplied by another 3/2 will get another mixed number. Simply a mixed number times a whole is the same as 2 mixed numbers multiplied because they both get mixed numbers as a result! I THINK

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Answer:

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We want to solve for x in $2x^2+3x-7=x^2+5x+39$

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By comparing to $ax^2+bx+c=0$ , we a=1,b=-2 and c=-46

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The last choice is correct

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