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kolbaska11 [484]
3 years ago
8

I need advice!

Mathematics
2 answers:
GuDViN [60]3 years ago
8 0
Study really hard and do your best would be the way to go!!
g100num [7]3 years ago
4 0
Alright, so you can try to study hard and gain a passing grade (A+) for the other two quarters. 
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Factor f(x) = 4x^2 − 5x − 21
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Answer:

x = -7/4, 3

Step-by-step explanation:

Use quadratic formula

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laila [671]

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-8,-7

Step-by-step explanation:

I think

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3 years ago
What is the answer Factorise: 2x² +7x+6.<br><br>​
Mila [183]

Answer:

2x  + 3 )(x   + 2 )

Step-by-step explanation:

2x² + 7x + 6          

Find two numbers multiplied together to get 6

and if you multiply one by 2, the answer is 7:

Tested:                                  

6 & 1  but 6 · 2 + 1 = 13 or 6 + 2 · 1  = 8 No

2 & 3  and 2 · 2 + 3 = 7    Yes

2x² = 2x  & x

 all signs are positive

   trinomial  factoring  (            )(            )

                                     (     +     )(      +    )

    2 and 3 are the numbers to use    (2x  + 3 )(x   + 2 )   or     (2x + 2) (x + 3)

The largest number goes with the 2x.

Therefore (2x  + 3 )(x   + 2 )

Check 2x(x + 2) + 3(x + 2)

              2x² + 4x + 3x + 6

              2x² + 7x + 6         checked                            

7 0
2 years ago
Read 2 more answers
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