Question

pls solve this

$a { }^{2} - 6ab + 8b ^{2} \: \: \: 2a {}^{2} - 4ab + b {}^{2} \: \: \: \: -5a { }^{2} + 13ab - 10b {}^{2}$
Add this one...plspls...
if one give right answer with its explanation..I will mark him/her as brainliast answer
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Answer 1

Please see the image description

Answer 2

$\huge\red {Solution}$

⏩Answer :-

$- 2 {a}^{2} + 3ab - {b}^{2}$

⏩Solution :-

${a}^{2} - 6ab + 8 {b}^{2} \: \: \: \: 2 {a}^{2} - 4ab + {b }^{2} \: \: \: \: - 5 {a}^{2} + 13ab - 10 {b}^{2} = - 2 {a}^{2} + 3ab - {b}^{2}$