Question

помоги Алгебра пж пж​

Answer 1

$(a {}^{2} + 5 b){ }^{2} =( {a}^{2} ){}^{2} + 2 \times {(a)}^{2} \times 5b + (5b) {}^{2} = {a}^{4} + 10 {a}^{2} b + 25 {b}^{2}$

$(6 {x}^{3} - y) {}^{2} = (6 {x}^{3} ) {}^{2} - 2 \times 6x {}^{3} \times y + y {}^{2} = 36x {}^{6} - 12x {}^{3} y + y {}^{2}$