tìm x

a) \(\left(x+4\right)^2+\left(2x-5\right)^2=5x^2+19\)

b) \(\left(2x-5\right)^2-\left(2x-6\right)^2=7x-12\)

c) \(\left(3x+10\right)^2-\left(2x-7\right)^2=0\)

d) \(\left(5x+12\right)-\left(3x-9\right)^2=0\)

e) \(\left(4x-3\right)^2-\left(2x-7\right)^2=12x^2+81\)

Tìm x

a)\(\left(x+4\right)^2+\left(2x-5\right)^2=5x^2+19\)

b) \(\left(2x-5\right)^2-\left(2x-6\right)^2=7x-12\)

c) \(\left(3x+10\right)^2-\left(2x-7\right)^2=0\)

d) \(\left(5x+12\right)-\left(3x-9\right)^2=0\)

e) \(\left(4x-3\right)^2-\left(2x-7\right)^2=12x^2+81\)

Tìm x

a)\(\left(x+3\right)^3-x\left(3x+1\right)+\left(2x+1\right)\left(4x-2x+1\right)=28\)

b)\(\left(2x-1\right)^3-4x^2\left(2x-3\right)=5\)

c)\(\left(x+1\right)^3-\left(x-1\right)^3-6\left(x-1\right)^2=-10\)

d)\(\left(x+2\right)^3-x^2\left(x+6\right)=4\)