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Dennis_Churaev [7]
3 years ago
6

How to factor 8a^2-2ab-21b^2 please help:)))

Mathematics
1 answer:
lawyer [7]3 years ago
6 0
<span>Equation at the end of step  1  :</span><span><span> ((8 • (a2)) - 2ab) - (3•7b2) </span><span> Step  2  :</span></span><span>Equation at the end of step  2  :</span><span> (23a2 - 2ab) - (3•7b2) </span><span>Step  3  :</span>Trying to factor a multi variable polynomial :

<span> 3.1 </span>   Factoring   <span> 8a2 - 2ab - 21b2</span> 

Try to factor this multi-variable trinomial using trial and error<span> 

 </span>Found a factorization  :  (4a - 7b)•(2a + 3b)

Final result : (4a - 7b) • (2a + 3b) <span>
</span>
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Step-by-step explanation:

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What is two other ways to write 8.517
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Answer:

22.

R= -8, 15

S= -5, 9

T= -8,9

23.

J = 4, 4

K = 4, 3

L = 1, 1

M = 1, 4

Step-by-step explanation:

rotation of -90= y, -x

so R (-7, -5) = -5,7

S (-1, -2) = -2, 1

T (-1, -5) = -5, 1

now we translate 3 left (x-3) and 8 up (y+8)

R (-5, 7) = -8, 15

S (-2, 1) = -5, 9

T (-5, 1) = -8, 9

reflection of x-axis= x, -y

J (-4, 4) = -4, -4

K (-3, 4) = -3, -4

L (-1, 1) = -1, -1

M (-4, 1) = -4, -1

Then a 180° rotation is (-y, -x)

J (-4, -4) = 4, 4

K (-3, -4) = 4, 3

L (-1, -1) = 1, 1

M (-4, -1) = 1, 4

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