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X^2 - 6x = -9 Solve using the quadratic formula. Approximate answers to the nearest tenth.

User Guy Thomas
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(a-b)^2=a^2-2ab+b^2 <--this is formula

x^2-6x+9=0

x^2-(2*1*3)x+3^2=0 a=1,b=3

(x-3)^2
User Sufiyan Ansari
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x^2 - 6x = -9\\\\x^2 - 6x +9=0\\ \\a=1, \ \ b=-6, \ \ c=9 \\\\ \Delta =b^2-4ac = (-6)^2 -4\cdot1\cdot 9 = 36 -36 =0 \\ \\x_(o)=(-b )/(2a)=( 6)/(2 )=3


User Wolfie
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