standard form of x (2x-4)=(x-2)(x-2); and (x+3)(x-3)=x (4x+5); x^2=3x+10; and (x+4)^2=5.
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Step-by-step explanation:
x(2x-4)=(x-2)(x-2)
2x²-4x=x²+(-2)²-2×x×-2
2x²-4x=x²+4+4x
x²=4+8x
x²-4-8x=0
(x+3)(x-3)=x(4x+5)
x²-3²=4x²+5x
x²-9=4x²+5x
3x²+5x+9=0
x²=3x+10
x²-3x-10=0
(x+4)²=5
x²+16+8x=5
x²+8x+11=0
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