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3 years ago

7

40 POINTS !! 40 POINTS !! PLEASE HELP , DONT SKIP ! NO LINKS OR FILES.

2 answers:

Andrew [12]3 years ago

5 0

Answer:

7 chalks

Step-by-step explanation:

7 crosses are above numbers that are higher than 5

nataly862011 [7]3 years ago

4 0

Answer: The answer is 4 pieces of chalk

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vredina [299]

Answer:

The value of x = 3.5 or -4

Step-by-step explanation:

=> 2x² = 28 – x

=> 2x²+ x - 28 = 0

=> 2x² + 8x - 7x - 28 = 0

=> 2x ( x + 4 ) - 7 ( x + 4 ) = 0

=> (2x - 7 ) ( x + 4 )

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