Answer only one question​ No 1 only

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Which value of c would make he following expression completely factored? 8x+cy

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?