X square + 8 x + 9 is equal to zero answer
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x^2 +2*2*2+4=9+4
(x+2)^2=13
x+2=√13
x+-√13-2
(x+2)^2=13
x+2=√13
x+-√13-2
Answered by
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Hi friend,
Here is your answer,
______________________________________________________________
x² + 8x + 9 = 0
x = -b⁺₋ √(b²-4ac)
2a
x = -8 + √{(8)² - 4*1*9} x = -8 - √{(8)² - 4*1*9}
2*1 2*1
x = -8 + √{64 - 36} x = -8 -√{64 - 36}
2 2
x = -8 + √28 x = -8 -√28
2 2
x = -4 + √7 x = -4 - √7
______________________________________________________________
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Here is your answer,
______________________________________________________________
x² + 8x + 9 = 0
x = -b⁺₋ √(b²-4ac)
2a
x = -8 + √{(8)² - 4*1*9} x = -8 - √{(8)² - 4*1*9}
2*1 2*1
x = -8 + √{64 - 36} x = -8 -√{64 - 36}
2 2
x = -8 + √28 x = -8 -√28
2 2
x = -4 + √7 x = -4 - √7
______________________________________________________________
★★★★ HOPE THIS HELPS YOU ★★★★
★★★★ PLS MARK ME AS BRAINLIEST ★★★★
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