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Assuming nothing is within parentheses, 4 x 4 + 4 x 4 + 4 - 4 x 4 = 16 + 16 + 4 - 16 = 16 + 4 = 20
4+4+4+4=16 but use mutiplycation like this Eg) 4x4=16 instead of... 4+4+4+4=16 see
(4x + 3)(x + 3)(x - 4)(x - 5)
-2(2x^4 - 13x^3 + 15)
44x44= 1936 4x4=16 1,936+16=1,952