expand the following by using identities ( 2x+5 ) ( 2x-5 ) pls help me guzz
Answers
Answered by
1
Answer:
Using the identity is
(m+
a)(m+
b)=
m 2
m(a+
b)+
ab
.
Given:
(2x+
3)(2x+
5)
we apply the above identity by taking
a=
3
b=
5
m= 2x
We get,
(2x+3)(2x+5)=
(2x) 2
(2x)(3+5)+
(3×5)=
4x
2
+
(2x)(8)+
15=
4x
2
+
16x+
15
Hence,
(2x+3)(2x+5)=
4x
2
+
16x+
15
Step-by-step explanation:
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Answered by
0
Step-by-step explanation:
- =2x+2x-5+5
- =6 is answer
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