Объяснение:
1)4√8=4√(4*2)=4*2√2=8√2
2) √(8а^3)=√(4*2*а*а^2)=2а√2а
3)
[tex] \sqrt{ - 98 {x}^{5} {y}^{12} {z}^{14} } = \sqrt{36 \times ( - 2) \times x \times {x}^{4} \times {y}^{12} \times {z}^{14} } = - 6 {x}^{2} {y}^{6} {z}^{7} \sqrt{ - 2x} [/tex]
х≤0, z<0
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Объяснение:
1)4√8=4√(4*2)=4*2√2=8√2
2) √(8а^3)=√(4*2*а*а^2)=2а√2а
3)
[tex] \sqrt{ - 98 {x}^{5} {y}^{12} {z}^{14} } = \sqrt{36 \times ( - 2) \times x \times {x}^{4} \times {y}^{12} \times {z}^{14} } = - 6 {x}^{2} {y}^{6} {z}^{7} \sqrt{ - 2x} [/tex]
х≤0, z<0