Factor this expression completely. −21x+28 (1 point) Responses −7(3x−4)negative 7 times open paren 3 x minus 4 close paren −7(3x+4)negative 7 times open paren 3 x plus 4 close paren 7(3x−4)7 times open paren 3 x minus 4 close paren −(21x−4)
1 answer
The completely factored expression of −21x+28 is -7(3x-4).