Answer:
-4
Step-by-step explanation:
Factor x2+9x+20 using the AC method.
Consider the form x²+bx+c
. Find a pair of integers whose product is c and whose sum is b. In this case, whose product is
20 and whose sum is 9.
4,5
Write the factored form using these integers.
(x+4)(x+5)=0
If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0
x+4=0
x+5=0
Set the first factor equal to 0.
Subtract 4 from both sides of the equation.
x=−4
Set the next factor equal to 0.
Subtract 5 from both sides of the equation.
x=−5
therefore the roots are -4&-5
tama po yung nasa taas tama po
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Answers & Comments
Answer:
-4
Step-by-step explanation:
Factor x2+9x+20 using the AC method.
Consider the form x²+bx+c
. Find a pair of integers whose product is c and whose sum is b. In this case, whose product is
20 and whose sum is 9.
4,5
Write the factored form using these integers.
(x+4)(x+5)=0
If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0
x+4=0
x+5=0
Set the first factor equal to 0.
x+4=0
Subtract 4 from both sides of the equation.
x=−4
Set the next factor equal to 0.
x+5=0
Subtract 5 from both sides of the equation.
x=−5
therefore the roots are -4&-5
Answer:
tama po yung nasa taas tama po