tiffanybarclay3030 tiffanybarclay3030

30-04-2021
Mathematics

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4(x + 7)^2 – 49 = -13 solve the following quadratic equation for all values of x in the simplest form

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mariambuchukuri7 mariambuchukuri7

30-04-2021

Answer:

4(x²+14x+49)-49+13=0

4x²+56x+196-49+13=0

4x²+56x+160=0

D=3136-2560=576

x1=-56+24/8=-4

x2=-56-24/16=-10

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