Question

(x-4)x^{2} -16 спростіть вираз

Answer 1

$(x - 4)x {}^{2} - 16 = x \times x {}^{2} - 4 \times x {}^{2} - 16 = x {}^{1 + 2} - 4x {}^{2} - 16 = x {}^{3} - 4x {}^{2} - 16.$

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$a(b - c) = ab - ac. \\ a {}^{n} \times a {}^{m} = a {}^{n + m} .$