Question

помогите номер 358 пожалуста

Answer 1

$\sqrt{a^5b} + \frac{3}{4a} \sqrt{a^7b}-\frac{3}{4a^2} \sqrt{a^9b} = a^2 \sqrt{ab} + \frac{3a^3}{4a} \sqrt{ab}-\frac{3a^4}{4a^2} \sqrt{ab} =\\ \\ a^2 \sqrt{ab} +0.75a^2 \sqrt{ab} +0.75a^2 \sqrt{ab}=a^2 \sqrt{ab}$

$\sqrt{c^7} +8c \sqrt{c^5} -11c^2 \sqrt{c^3} =c^3 +8cc^2\sqrt{c} -11c^2c\sqrt{c} = -2c^3\sqrt{c}$

$n \sqrt{m^4n^3} +m^2 \sqrt{n^5} -3n^2 \sqrt{m^4n} = \\ \\ nm^2n \sqrt{n} +m^2n^2\sqrt{n} -3n^2m^2\sqrt{n} =-n^2m^2\sqrt{n}$

$\sqrt{x^7y^8} -5x^3y \sqrt{xy^6} +6xy^2 \sqrt{x^5y^4} = \\ \\ x^3y^4 \sqrt{x} -5x^3yy^3 \sqrt{x} +6xy^2x^2y^2 \sqrt{x} =2x^3y^4 \sqrt{x}$