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mestny [16]
3 years ago
13

Please help me i have to finnish this!!!

Mathematics
1 answer:
sleet_krkn [62]3 years ago
8 0

Answer:

488

Step-by-step explanation:

  1. 6x^{2}  + 2 = 0
  2. replace x = -9 => 6 x (-9)^2 + 2  = 488  
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7 0
4 years ago
Multiply.<br>(2x-5) (3x-7)​
Naya [18.7K]

Answer:

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Step-by-step explanation:

use the FOIL method(First, Outer,Inner, and Last.)

2x x 3x=6x^2.

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4 0
3 years ago
Solve the systemSolve the system by either substitution or elimination 4x + 4y = 20, 2x -2y = -18 by either substitution or elim
valina [46]
{4x + 4y = 20  | ÷4<span>
{2x -2y = -18   | </span>÷2

{x + y = 5 
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--------------
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x + y = 5 
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y = 5 + 2
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The answer is (-2, 7)

7 0
4 years ago
5.55
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I’m pretty sure the answer is D
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