Question

Алгебра,помогите плиз

Answer 1

Вроде так

№1

а)

${a}^{4} \times ( {a}^{9} ) ^{3} = {a}^{4} \times {a}^{27} = {a}^{31}$

б)

$( {0.3ax}^{3} ) ^{2} = 0.09a ^{2} x ^{6}$

в)

$(2ac^{2} ) ^{2} \times \frac{1}{8} a ^{6} x ^{3} = 4 {a}^{2} {c}^{4} \times \frac{1}{8} {a}^{6} {x}^{3} = 0.5 {a}^{8} {c}^{4} {x}^{3}$

№2

а)

$5 {a}^{3} \times ( {a}^{4} + 2) = 5 {a}^{7} + 10 {a}^{3}$

б)

$(3a + 4) - (7a + 6) = 3a + 4 - 7a - 6 = - 4a - 2$

в)

$(a - 5) \times (2a - 7) = 2 {a}^{2} - 7a - 10a + 35 = 2 {a}^{2} - 17a + 35$