Назад
ГДЗ Алгебра 7 клас Істер (2024)
2. ЦІЛІ ВИРАЗИ
Реклама:
Розкладіть на множники:
1) ax2 – ay2 = a(x2 – у2) = a(x – y)(x + y);
2) mа2 – 4mb2 = m(a – 4b2) = m(a – 2b)(a + 2b);
3) 28 – 7m2 = 7(4 – m2) = 7(2 – m)(2 + m);
4) p5 – p3= p3(p2 – 1) = p3(p – 1) (p + 1);
5) b – 4b3 = b(1 – 4b2) – b(1 – 2b)(1p + 2b);
6) a5 – a3c2 = a3(a2 – c2) = a3(a – c)(a + c);
7) 15d – 15d3 = 15d(1 – d2)= 15d(1 – d)(1 + d);
8) 625b3 – b5 = b3(625 – b2) = b3(25 – b)(25 + b);
9) 500a5 – 45a3 = 5a3(100a2 – 9) = 5a3(10a – 3)(10a + 3).
1) ax2 – ay2 = a(x2 – у2) = a(x – y)(x + y);
2) mа2 – 4mb2 = m(a – 4b2) = m(a – 2b)(a + 2b);
3) 28 – 7m2 = 7(4 – m2) = 7(2 – m)(2 + m);
4) p5 – p3= p3(p2 – 1) = p3(p – 1) (p + 1);
5) b – 4b3 = b(1 – 4b2) – b(1 – 2b)(1p + 2b);
6) a5 – a3c2 = a3(a2 – c2) = a3(a – c)(a + c);
7) 15d – 15d3 = 15d(1 – d2)= 15d(1 – d)(1 + d);
8) 625b3 – b5 = b3(625 – b2) = b3(25 – b)(25 + b);
9) 500a5 – 45a3 = 5a3(100a2 – 9) = 5a3(10a – 3)(10a + 3).