Question

Ajutor va rog ! repede daca se poate urmeaza altele , ex 10 , 11 cum se vede in imagine

Answer 1

10. a)(x+4)(x-4)
b)(x+5)(x-5)
c)(x+7)(x-7)=x^2-49
d)(x+6)(x-6)
e)(3x+1)(3x-1)
f)(3y+1)(3y-1)
g)(a+V2)(a-V2)
h)(xV3+2)(xV3-2)=3x^2-4

11.a)(x-1)(x+1)(x^2+1)=(x^2-1)(x^2+1)=x^4-1
b)(a-b)(a+b)(a^2+b^2)=(a^2-b^2)(a^2+b^2)=a^4-b^4
c)(x-y)(x+y)(x^2+y^2)(x^4+y^4)=(x^2-y^2)(x^2+y^2)(x^4+y^4)=(x^4-y^4)(x^4+y^4)=x^8-y^8
d)(z-2)(z+2)(z^2+4)(z^8+16)=(z^2-4)(z^2+4)(z^4+16)=(z^4-16)(z^4+16)=z^8-256