Question

2 root 180 - 7 root 20 + 10 root 45

Answer 1

Answer:

here is the answer mate

Answer 2

Answer:

Your answer is 6√5 - 7√5 + 15√5

Step-by-step explanation:

$2 \sqrt{180} - 7 \sqrt{20} + 10 \sqrt{45} \\ with \: facorization \: we \: get \\ 2 \sqrt{(18 \times 10)} - 7 \sqrt{(2 \times 10)} + 10 \sqrt{(9 \times 5)} \\ 2 \sqrt{(2 \times 3 \times 3)(2 \times 5)} - 7 \sqrt{2 \times 2 \times 5)} + 10 \sqrt{(3 \times 3 \times 5)} \\ 2 \sqrt{(2 \times 2)(3 \times 3) \times 5} - 7 \sqrt{(2 \times 2) \times 5} + 10 \sqrt{(3 \times 3) \times 5} \\ 2 \times 2 \times 3 \sqrt{5} - 7 \times 2 \sqrt{5} + 10 \times 3 \sqrt{5} \\ = 12 \sqrt{5} - 14 \sqrt{5} + 30 \sqrt{5} \\ (here \: 2 \: ia \: a \: common \: divisor) \\ so \: we \: get \: common \: factor \: 2 \\ 2 \: (6 \sqrt{5} - 7 \sqrt{5} + 15 \sqrt{5} )$