Question

24 балла. Алгебра. ПОЖАЛУЙСТА НАЙДИСЬ СВЯТОЙ ЧЕЛОВЕК

Answer 1

$15a - 45 = 15(a - 3)$
$5 {a}^{3} + 25a = 5a( {a}^{2} + 5)$
${x}^{2} - 4x = x(x - 4)$
$xy + xz - 3y - 3z = x(y + z) - 3(y + z) = (x - 3)(y + z)$
${x}^{2} - 16 = (x - 4)(x + 4)$
$64 {a}^{2} - 1 = (8a - 1)(8a + 1)$
$0.25 - {a}^{2} {x}^{24} =( 0.5 - a {x}^{12} )(0.5 + a {x}^{12} )$
${a }^{2} - 4a + 4 = {( a- 2)}^{2}$
$4 {x}^{2} - 12x + 9 = {(2x - 3)}^{2}$
$25 + 0.36 {x}^{2} + 6x = {(5 + 0.6x)}^{2}$