Question

x-3+√2)(x-(3-√2) pls do multiply step by step with full explanation chapter 2 polynomial class 10 th​

Answer 1

$\large \bf(x + 3 + \sqrt{2} )(x + 3 - \sqrt{2} ) \\ \\ \tiny{ \bf \implies x \big(x + 3 - \sqrt{2} \big) + 3 \big(x + 3 - \sqrt{2} \big) + \sqrt{2} \big(x + 3 - \sqrt{2} \big)} \\ \\ \tiny{ \bf \implies {x}^{2} + 3x \cancel{ - \sqrt{2} x} + 3x + 9 \cancel{- 3 \sqrt{2}} \cancel{+ \sqrt{2}x} \cancel{ + 3 \sqrt{2} }- 4 } \\ \\ \small{ \bf \implies {x}^{2} + (3 + 3)x + ( 9 - 4) } \\ \small{ \bf\implies \red{{x}^{2} + 6x + 5}}$