Question

помогите пж СРОЧНО!!!!!

Answer 1

$\frac{27(a + 1) {}^{2} d {}^{2} }{18dy {}^{2} } = \frac{3(a + 1) {}^{2} d}{2y {}^{2} } = \frac{3a {}^{2} d+ 6a d+ 3 d}{2y {}^{2} }$