1 ) Calculate : 2 ) Deduct : the number 103121 is prime number.
Follow Math Help Forum on Facebook and Google+
for the first one $\displaystyle (x^3+2x+1)(x^2+1)$ $\displaystyle x^2(x^3+2x+1)+1(x^3+2x+1)$
$\displaystyle 103121=101\times 1021$ A answer without calculators will be highly appreciated.. I used a calculator
; if x = 10, then (10^3 + 2(10) + 1)(10^2 + 1) = (1021)(101) = 103121
View Tag Cloud