Question

152. Розкладіть на множники квадратний тричлен: 1) a²-13a+22; 2)-b²+2b+24; 3) 100c²-50c +6; 4) \y²+3y-5; 5)-x²-3x+6 6) m² -6m-1; 7) 4x²-20x+25; 8) - 3x² +7x-2.​

Answer 1

Ответ:

a²-13a+22 = (a-11)(a-2)

-b²+2b+24 = -(b-6)(b+4)

100c²-50c+6 = 2(10c-3)(5c-1)

y²+3y-5 = (y+5)(y-1)

-x²-3x+6 = -(x-2)(x+3)

m²-6m-1 = (m-3+√10)(m-3-√10)

4x²-20x+25 = (2x-5)(2x-5) or (2x-5)²

-3x²+7x-2 = -(3x-1)(x-2)