For expanding two binomials, you can use the FOIL method. (F: First terms, O: Outer terms, I: Inner terms, L: Last terms)
4x^2-64x+4x-64=4x^2-60x-64.
For expanding two binomials, you can use the FOIL method. (F: First terms, O: Outer terms, I: Inner terms, L: Last terms)
4x^2-64x+4x-64=4x^2-60x-64.