Answer:
(x-8)(x+1)
Step-by-step explanation:
solving method using a double bubble.
[tex]x^{2} -7x-8[/tex]
you tell yourslef what multiplies to -8 and also adds up to -7?
the rule is always what multiplies to the last number but also adds to the middle number. you also have to look at the sign.
-8 and 1 multplies to -8 and adds up to -7.
now you draw two parenthesis and include one x in each.
(x )(x )
you now put the two numbers, -8 and 1 into the parenthesis.
(x-8)(x+1)
to check if your right you just distribute between the parenthesis using FOIL.
x times x, x times 1, -8 times x, -8 times 1.
add like terms and you will get the same answer.
