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3 years ago

True or false the fraction 9/21 is in lowest terms

Mathematics

2 answers:

Darina [25.2K]3 years ago

7 0

This is false.

9/12 in it's lowest terms is 3/7.

Brums [2.3K]3 years ago

6 0

Very simple false becuse the lowest form is 3\7

3\7 in decimal is 0.42857142 or 0.43

 3\7 in percent 42.857143% or 43 %

use math way . c o m

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3 X 5 power or 2

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4 years ago

I need help with this please!!

vovangra [49]

Answer:

${6x}^{3} + {9x}^{2} - 18x + 3$

Step-by-step explanation:

1. Expand by distributing sum groups. $3x( {2x}^{2} + 5x - 1) - 3( {2x}^{2} + 5x - 1)$

2. Expand by distributing terms.

${6x}^{3} + {15x}^{2} - 3x - 3( {2x}^{2} + 5x - 1)$

3.Expand by distributing terms.

${6x}^{3} + {15x}^{2} - 3x - ( {6x}^{2} + 15x - 3)$

4. Remove parentheses.

${6x}^{3} + {15x}^{2} - 3x - {6x}^{2} - 15x + 3$

5. Collect like terms.

${6x}^{3} + {15x}^{2} - {6x}^{2} ) + ( - 3x - 15x) + 3$

6. Simplify.

${6x}^{3} + {9x}^{2} - 18x + 3$

Thus. the answer is,

${6x}^{3} + {9x}^{2} - 18x + 3$

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