Answer:
There are four correct expressions.
Step-by-step explanation:
Four correct expressions:
Simplify:
(x+6)×(x-7)
x(x-7)+6(x-7)
x^2-7x+6x-42
x^2-x-42=0
x^2-(7-6)x-42=0
x^2-7x+6x-42=0
x(x-7)+6(x-7)=0
(x+6).(x-7)=0
x+6=0 is equation one
x-7=0. is equation two
equation one is solve
x+6=0
x=-6
equation two is solve
x-7=0
x=7
therefore, x= -6 and 7
6x-7+32/4x+2
Divide using polynomial division
A. 36 x 4 = ?
(14)^2 - 29 196 - 29 = 167