2 answers:
Answer:
6(7a+2) (a-2)
Step-by-step explanation:
Add and subtract the second term to the expression and Factor by grouping.
I'm not really sure but I hope this is the answer
9514 1404 393
Answer:
6(a -2)(7a +2)
Step-by-step explanation:
Removing a common factor of 6 can make the quadratic factors easier to find.
= 6(7a^2 -12a -4)
We want to find factors of (7)(-4) that have a total of -12. It doesn't take much search to see they are (-14)(2), so the expression can be written as ...
= 6(7a^2 -14a +2a -4) = 6((7a^2 -14a) +(2a -4)) . . . . rewrite 'a' term; group pairs
= 6((7a(a -2) +2(a -2)) . . . . factor pair groups
= 6(a -2)(7a +2) . . . . . . . . finish factoring
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Step-by-step explanation:
Answer:
SA = 2400 cm²
Step-by-step explanation:
SA of a cube = S² x 6 (the number of its faces)
SA = 20² x 6
SA = 400 x 6
SA = 2400 cm²
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Answer:
The answer is 16.
Step-by-step explanation:
6 x 3 = 18
18 - 2 =16
Answer:yes
Step-by-step explanation:divide each dimension
