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Phantasy [73]
3 years ago
6

Explain how to do this plz

Mathematics
2 answers:
AVprozaik [17]3 years ago
8 0
The final answer is (7r^2 - 6) (7r + 6)
r-ruslan [8.4K]3 years ago
8 0
49r³+42r²-42r-36
=(49r³+42r²)+(-42r-36)
(7r+6)(7r²-6)
7r²-6
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More points also what is 2x3+4x6x8+9
-Dominant- [34]

Answer:

the answer is 207

Step-by-step explanation:

using bodmas

7 0
2 years ago
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If f(x) = 2x - 5, then f(4) is<br> 17<br> 5<br> 4<br> 3
vagabundo [1.1K]

Answer:

  3

Step-by-step explanation:

The notation "f(4)" means you put 4 where x is in the algebraic expression, then do the arithmetic.

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6 0
3 years ago
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J /-2 + 7 = -12. what is the value of j<br>​
anyanavicka [17]

Answer:

<h2><u>j = 38</u></h2>

Explanation:

ʲ⁄₋₂ + 7 = -12

Subtract 7 From Both Sides

ʲ⁄₋₂ + 7 - 7 = -12 - 7

Simplify

ʲ⁄₋₂ = -19

Multiply Both Sides By -2

(-2) ʲ⁄₋₂ = -19 (-2)

<h2><u>j = 38</u></h2>
8 0
3 years ago
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I need help on this! ASAP
strojnjashka [21]

Answer:

-2

Step-by-step explanation:

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