解:(1)∵函数f(x)=4x﹣2x+1+3=(2x)2﹣2•2x+3=(2x﹣1)2+2,
当x∈﹣2,1时,2x∈1
— You are standing too near to the TV. Can you move a bit _______?
— OK, Mom. Is it all right here?
____ ____my computer to play computer games.