Question

Va rog e urgent ..dau coroana..​

Answer 1

Explicație pas cu pas:

a) ×^2-6×-×+6=0

×(×-6)-(×-6)=0

(×-6)(×-1)=0

b) ×^2-4×+2×-8=0

×(×-4)+2(×-4)=0

(×-4)(×+2)=0

c) x^2+7×-2×-14=0

×(×+7)-2(×+7)=0

(×+7)(×-2)=0

d) ×^2-10×+2×-20=0

×(×-10)+2(×-10)=0

(×-10)(×+2)=0

e)×^2+6×-2×-12=0

×(×+6)-2(×+6)=0

(×+6)(×-2)=0

f)×^2-10×+3×-30=0

×(×-10)+3(×-10)=0

(×-10)(×+3)=0

g)×^2-2×-7×+14=0

×(×-2)-7(×-2)=0

(×-2)(×-7)=0

h)×^2-2×-8×+16=0

×(×-2)-8(×-2)=0

(×-2)(×-8)=0

i)×^2+2×+5×+10=0

×(×+2)+5(×+2)=0

(×+2)(×+5)=0