SOLUTION: (2s + 5z)^2 (s + 3z)^2 This is what I get: = (2s + 5z) (2s + 5z) (s + 3z) ² = 4s² + 10sz + 10sz + 25z² (s + 3z) (s + 3z) = 4s² + 10sz + 10sz + 25z² + s² + 3sz + 3sz + 9z²
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-> SOLUTION: (2s + 5z)^2 (s + 3z)^2 This is what I get: = (2s + 5z) (2s + 5z) (s + 3z) ² = 4s² + 10sz + 10sz + 25z² (s + 3z) (s + 3z) = 4s² + 10sz + 10sz + 25z² + s² + 3sz + 3sz + 9z²
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Question 329753
:
(2s + 5z)^2 (s + 3z)^2
This is what I get:
= (2s + 5z) (2s + 5z) (s + 3z) ²
= 4s² + 10sz + 10sz + 25z² (s + 3z) (s + 3z)
= 4s² + 10sz + 10sz + 25z² + s² + 3sz + 3sz + 9z²
= 4s² + s² + 10sz + 10sz + 3sz + 3sz + 25z² + 9z²
= 5s² + 26sz + 34z²
Is this correct?
Answer by
Alan3354(69443)
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(2s + 5z)^2 (s + 3z)^2
This is what I get:
= (2s + 5z) (2s + 5z) (s + 3z) ²
= 4s² + 10sz + 10sz + 25z² (s + 3z) (s + 3z)
= 4s² + 10sz + 10sz + 25z² + s² + 3sz + 3sz + 9z²
= 4s² + s² + 10sz + 10sz + 3sz + 3sz + 25z² + 9z²
= 5s² + 26sz + 34z²
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Why did you add them?
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