Toán Lớp 8: tìm x:
a,(x-4)^2 -36=0
b,x(x+6)-42-7x=0
c,x^2+8x+16=0
d,x^2+4x+3=0
e,(x+2)^2 – x(x-3)=0
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Toán Lớp 8: tìm x:
a,(x-4)^2 -36=0
b,x(x+6)-42-7x=0
c,x^2+8x+16=0
d,x^2+4x+3=0
e,(x+2)^2 – x(x-3)=0
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