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Virty [35]
2 years ago
12

Factor completely 3x^2 − 21

Mathematics
2 answers:
beks73 [17]2 years ago
7 0
When factor 3 out of 3x^2-21 
you  get 3(x^2-7)

Firdavs [7]2 years ago
5 0
The highest common factor of the two terms is 3, so that goes outside the bracket as 3(____). To get 3x^2, you multiply 3 by x^2, which is your first term in the bracket, and to get -21, you multiply 3 by -7, so your final answer is 3(x^2 - 7). I hope this helps!
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<u>Given </u><u>:</u><u>-</u>

  • The slope of the line through points (3,y) and (4,10) is 7 .

<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u>

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<u>Solution</u><u> </u><u>:</u><u>-</u>

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