Question

Daca la produsul 7 si 6 adaugam produsul a doi factori egali obtinem rezultatul 106.Afla factori egali!

Answer 1

$7 \times 6 + {a}^{2} = 106$

$42 + {a}^{2} = 106$

${a}^{2} = 106 - 42$

${a}^{2} = 64$

$a = \pm \sqrt{64}$

$a = \pm8$