Answer:
1. 2x(x-3)=9
2x^2 - 6x-9 =0
=D
2. (x-2)(x+3)=3x^2
X^2+3x-2x-6=3x^2
X^2+x-6=3x^2
-3x^2+x^2+x-6=0
-(-2x^2+x-6)=0
2x^2-x+6=0
=B
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Answers & Comments
Answer:
1. 2x(x-3)=9
2x^2 - 6x-9 =0
=D
2. (x-2)(x+3)=3x^2
X^2+3x-2x-6=3x^2
X^2+x-6=3x^2
-3x^2+x^2+x-6=0
-(-2x^2+x-6)=0
2x^2-x+6=0
=B