Question

a minus b equal to 7 and AB equal to 9 then a square + b square is equal to
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Answer 1

$a - b = 7$

Squarring both sides

${(a - b)}^{2} = {7}^{2}$

${a}^{2} + {b}^{2} - 2ab = 49$

Since ab=9

${a}^{2} + {b}^{2} - 2 \times 9 = 49$

${a}^{2} + {b}^{2} = 49 + 18$

${a}^{2} + {b}^{2} = 67$

Answer 2

Heya mate,

Here's your answer

=>it's here in the attachment

Hope it helps you!

Plz mark my answer as branliest ☺️❤️