Which is equivalent to 4xx+7−x−7x 4 + 7 − − 7 (1 point) Responses 3x2+49x2+7 3 2 + 49 2 + 7 the fraction with numerator 3 x squared plus 49 and denominator x squared plus 7 3x2+49x(x+7) 3 2 + 49 ( + 7 ) the fraction with numerator 3 x squared plus 49 and denominator x times open paren x plus 7 close paren 3x2−49x(x−7) 3 2 − 49 ( − 7 ) the fraction with numerator 3 x squared minus 49 and denominator x times open paren x minus 7 close paren 3x2+49x(x−7)
