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Alecsey [184]
3 years ago
7

Factor completely 7x2-45x-28

Mathematics
1 answer:
MatroZZZ [7]3 years ago
6 0

9514 1404 393

Answer:

  (x -7)(7x +4)

Step-by-step explanation:

The term -45x can be rewritten using factors of (7)(-28) that have a total of -45. Those factors would be ...

  (7)(-28) = (4)(-49)

7x^2 +4x -49x -28 = x(7x +4) -7(7x +4) = (x -7)(7x +4)

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3 0
3 years ago
What is the numerical expression of eight to the fourth power increased by six ​
Ilya [14]

Answer:

8^4 + 6

Step-by-step explanation:

we know it is an expression so there should be no equal sign and the write eight to the fourth power increased by six ​in numbers.

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4 0
3 years ago
Osceres
Igoryamba

Answer:

∠B = 12°

∠C = 180 - 48° = 132° ( straight line angle = 180)

Sum of angles of a triangle = 180°

180 =  ∠A + ∠B + ∠C

180 = ∠A + 12 + 132

180 - 144 = ∠A

∠A =  36°

option B

6 0
3 years ago
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