Question

PLEASEEEEEEEEEEEE HELP?!

Answer 1

=x²_7x+10

Explanation

number 2

[x-2][x-5]

x[x_5]_2[x_5]=

[x²-5x-2x+10]=

=x²_7x+10

number3

x²+6x+5

sum=6

product=5

factors=[1,5]

x+1=0

x=_1

x+5=0

x=_5

number 4

simultaneous equation

x+y=4

x+4y=7

[_3y=_3] divide both side by negative 3 to get Y as 1

equate 1 to x+y=4 to get X as 3