Expand Using Identities (2x-3)² ?
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4
Step-by-step explanation:
ANSWER
(2x+3y)
2
=(2x)
2
+2(2x)(3y)+(3y)
2
=4x
2
+12xy+9y
2
Aliter: (2x+3y)
2
=(2x+3y)(2x+3y)
=2x(2x+3y)+3y(2x+3y)
=(2x)(2x)+(2x)(3y)+(3y)(2x)+(3y)(3y)
=4x
2
+6xy+6yx+9y
2
[∵xy=yx]
(2x+3y)
2
=4x
2
+12xy+9y
2
Answered by
3
Answer:
Answer is in the picture
Step-by-step explanation:
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