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Step 1As per guidelines, we will solve only first question.Given function is fx=x4+4x3-7x2-34x-24 Step 21) To find the intercepts.The x-intercepts are found where fx=0⇒x4+4x3-7x2-34x-24=0⇒x+1x+2x-3x+4=0⇒x=-1, x=-2, x=3, x=-4so-1,0, - ... See the full answer