factorise the following expression which are the form b2+7b-8
Answers
Answered by
0
How to solve your question
Your question is
2
+
7
−
8
b^{2}+7b-8
b2+7b−8
Grouping
1
Use the sum-product pattern
2
+
7
−
8
2
+
8
−
−
8
2
Common factor from the two pairs
2
+
8
−
−
8
(
+
8
)
−
1
(
+
8
)
3
Rewrite in factored form
(
+
8
)
−
1
(
+
8
)
(
−
1
)
(
+
8
)
Solution
(
−
1
)
(
+
8
)
Answered by
0
Answer:
b
2
−
7
b
−
8
Consider the form
x
2
+
b
x
+
c
. Find a pair of integers whose product is
c
and whose sum is
b
. In this case, whose product is
−
8
and whose sum is
−
7
.
−
8
,
1
Write the factored form using these integers.
Step-by-step explanation:
How to solve your question
Your question is
2
+
7
−
8
b^{2}+7b-8
b2+7b−8
Grouping
1
Use the sum-product pattern
2
+
7
−
8
2
+
8
−
−
8
2
Common factor from the two pairs
3
Rewrite in factored form
Solution
(
−
1
)
(
+
8
)
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