learning task 1: complete the table given below and find the relations among con...

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renzpusancho06 @renzpusancho06

April 2021 1 26 Report

learning task 1: complete the table given below and find the relations among contrast a,b and c in the quadratic equation standard form

please answer this

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Verified answer

1. a = 1 b = 4 c = 3

b² - 4ac = 4² - 4(1)(3)

= 16 - 12

= 4

$x = \frac{ - b ± \sqrt{ {b}^{2} - 4ac} }{2a}$

$x = \frac{ -4 ± \sqrt{4} }{2}$

$x = \frac{ -4 ±2 }{2}$

$x_{1}= \frac{ - 4 + 2}{2} = \frac{ - 2}{2} = - 1$

$x_{2} = \frac{ - 4 - 2}{2} = \frac{ - 6}{2} = - 3$

2. a = 1 b = -5 c = 4

b² - 4ac = (-5)² - 4(1)(4)

= 25 - 16

= 9

$x = \frac{ -( - 5) ± \sqrt{ { - 5}^{2} - 4(1)(4)} }{2(1)}$

$x = \frac{ 5 ± \sqrt{9} }{2}$

$x = \frac{ 5±3 }{2}$

$x_{1}= \frac{ 5 + 3}{2} = \frac{ 8}{2} = 4$

$x_{2}= \frac{ 5 - 3}{2} = \frac{ 2}{2} = 1$

3. a = 1 b = 0 c = -49

b² - 4ac = (0)² - 4(1)(-49)

= 0 + 196

= 196

$x = \frac{ -( 0) ± \sqrt{ { 0}^{2} - 4(1)( - 49)} }{2(1)}$

$x = \frac{ 0 ± \sqrt{196} }{2}$

$x = \frac{ ±14 }{2}$

$x_{1}= \frac{ 14}{2} = 7$

$x_{2}= \frac{ - 14}{2} = - 7$

4. a = 4 b = 0 c = -25

b² - 4ac = (0)² - 4(4)(-25)

= 0 + 400

= 400

$x = \frac{ -( 0) ± \sqrt{ { 0}^{2} - 4(4)( - 25)} }{2(4)}$

$x = \frac{ 0 ± \sqrt{400} }{8}$

$x = \frac{ ±20 }{8}$

$x_{1}= \frac{20}{8} = \frac{5}{2}$

$x_{2}= \frac{ - 20}{8} = \frac{ - 5}{2}$

5. a = 2 b = 7 c = 3

b² - 4ac = (7)² - 4(2)(3)

= 49 - 24

= 25

$x = \frac{ -( 7) ± \sqrt{ { 7}^{2} - 4(2)(3)} }{2(2)}$

$x = \frac{ - 7 ± \sqrt{25} }{4}$

$x = \frac{ - 7±5 }{4}$

$x_{1}= \frac{ - 7 + 5}{4} = \frac{ - 2}{4} = \frac{ - 1}{2}$

$x_{2}= \frac{ - 7 - 5}{4} = \frac{ - 12}{4} = - 3$

#CarryOnLearning

jmerc walang roots dyan, value lang yan ng a,b,c, at discriminant

jmerc aymali pala. yung x1 x2 yan yung roots

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BossUnyok idol task 2

tadoyangel05 ano yan diko gets?

jmerc yung task 2, pki tignan sa questions nung nag post nito, may answer na din ako dun

junggukie50 pano po pag kakasulat nito

09176457919 wow thank you

paulojustinehudgens Nice lods

darongchristian6 pano po yan ilalagay sa questions?

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