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givi [52]
3 years ago
13

Pls help me.give all the answer.

Mathematics
2 answers:
mr Goodwill [35]3 years ago
6 0
Just get a calculator trust me it will be so much faster than asking people for help
Strike441 [17]3 years ago
3 0

Answer:

a ) 60

b) 10

c) 45

d) -5

e) 111

Step-by-step explanation:

use a calculator

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The second option, 3x^2(x+3)(4x+1)

Step-by-step explanation:

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Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each quadratic equation with its so
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The quadratic equations and their solutions are;

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Explanation:

  • Any quadratic equation of the form, ax² + bx + c = 0 can be solved using the formula x = -b ± √b² - 4ac / 2a. Here a, b, and c are the coefficients of the x², x, and the numeric term respectively.
  • We have to solve all of the five equations to be able to match the equations with their solutions.
  • 2x² - 8x + 5, here a = 2, b = -8, c = 5.                                                  x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(5) / 2(2) = 8 ± √64 - 40/4.     24 can also be written as 4 × 6 and √4 = 2. So                                                                                     x = 8 ± 2√6 / 2×2= 4±√6/2.
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  • 2x² - 8x - 3, here a = 2, b = -8, c = -3.                                                    x = -b ± √b² - 4ac / 2a = -(-8) ± √(-8)² - 4(2)(-3) / 2(2) = 8 ± √64 + 24/4.     88 can also be written as 4 × 22 and √4 = 2. So                                                                             x = 8 ± 2√22 / 2×2 = 4± √22/2.
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