b^2-4a. help me please. also can you help me with de/2+5, 3h+5g+1, 2(d+f)+h, a+b/3, (g+2)(g-2) and abe+f. thanks

don't know what that says sorry i can't you

step-by-step explanation:

idk what it says

the first option is the answer.

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0