Use identity and simplify
( 2a ²+ 9 ). (2a²+5)
with method
Answers
Answered by
0
Answer:
Step-by-step explanation:
Answered by
0
Step-by-step explanation:
just do it by (x+a)(x+b)
then the formula came=
x²+ab+(a+b)x
then..
4a⁴+45+28a²
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