741* Вправа 741Алгебра 8 клас Тарасенкова 2025 · § 17 · стор. 217

741. За якого значення параметра р:

1) ${\displaystyle x=}$${\displaystyle 5}$:

${\displaystyle 5^2+p\cdot 5-35=}$${\displaystyle 0}$;

${\displaystyle 25+5p-35=}$${\displaystyle 0}$;

${\displaystyle 5p-10=}$${\displaystyle 0}$;

${\displaystyle 5p=}$${\displaystyle 10}$;

${\displaystyle p=}$${\displaystyle 2}$;

2) ${\displaystyle x=}$${\displaystyle 3}$:

${\displaystyle p\cdot 3^2-11\cdot 3+6=}$${\displaystyle 0}$;

${\displaystyle 9p-33+6=}$${\displaystyle 0}$;

${\displaystyle 9p-27=}$${\displaystyle 0}$;

${\displaystyle 9p=}$${\displaystyle 27}$;

${\displaystyle p=}$${\displaystyle 3}$.