1. Tính a.(x-3y).(x-3y)
b.49x^2-70x+25
2.Tìm x
1.(x+2)^2+(x-3)^2-2(x-1).(x+1)=9
2.(x+3).(x^2-3x+9)-x^3=2x
3.(x-2)^3-x^3+6x^2=7
*lưu ý: ^2=mũ 2,^3=mũ 3

g

step-by-step explanation:

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1