Question

please answer this I will mark the brainlist

Answer 1

$\underline{\bold{\large{\purple{Answer}}}}$

$1)\:\:x^{2}(x-1)^{2}\\\\x^{2}(x^{2}+1+2x)\\\\x^{4}+x^{2}-2\times x^{3}\\\\\boxed{\text{answer is 4 degree}}$

$2)\:\:\sqrt{2} x^{3} +5 \\\\ \boxed{\text{ answer is 3 degree}}$

$3)\:\: (x+1)^{2}\\\\ x^{2}+1+2x\\\\ \boxed{\text{answer is 2 degree}}$

$4)\:\:(x-2)^{3} = (x-2)(x-2)(x-2)\\\\ \implies (x-2)(x^{2}-4x+4)\\\\\implies x^{3}-16x^{2}+12x-8\\\\\boxed{\text{ answer is 3 degree}}$

$\:Coefficient \:of\: x^{2}$

$i)\:\: 2+x(5+6x+x^{2})\\\\ \boxed{ \implies +1\: is\: a \:coefficient}$

$ii)\:\: 3x^{2}+5x-6x^{2}+5\\\\\implies -3x^{2}+5x+5\\\\\boxed{\implies -3 \: is \: a\: coefficient}$