Question

descompuneti in factori
a)x^2-y^2 b)a^2-4 c)x^2-9 d)25x^2 - y^2
e)-m^2+16n^2 f)36a^2 -49 g) 64-25a^2 h)9a^2-16b^2
i)64x^2-81 y^2 j)-49p^2+16q^2 k)0,01n^2-4m^2 l)9-b^2c^2
m)4a^2 n)p^2-a^2b^2 o) 16x^2y^2-9a^2 p)1_x^2- _4_a^2b^2
4 9

Answer 1

Răspuns:

Explicație pas cu pas:

a) (x+y)(x-y)

b)a^2-2^2=(a+2)(a-2)

c)x^2-3^2=(x+3)(x-3)

d)(5x)^2-y^2=(5x+y)(5x-y)

e)(4n)^2-m^2=(2n+m)(2n-m)

f) (6a)^2-7^2=(6a+7)(6a-7)

g)8^2-(5a)^2=(8+5a)(8-5a)

h)(3a)^2-(4b)^2=(3a+4b)(3a-4)

i) (8x)^2-(9y)^2=(8x+9y)(8x-9y)

j) (4q)^2-(7p)^2=(4q+7p)(4q-7p)

k) (n/10)^2-(2m)^2=(n/10+m)(n/10-m)

l)3^2-(bc)^2=(3+bc)(3-bc)

n) p^2-(ab)^2=(p+ab)(p-ab)

o) (4xy)^2-(3a)^2=(4xy+3a)(4xy-3a)

i)