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aleksklad [387]
4 years ago
7

Expand and simplify 5(2y+1)^2 -4

Mathematics
2 answers:
Alexandra [31]4 years ago
7 0

Answer:

20y² + 20y + 1

Step-by-step explanation:

Given

5(2y + 1)² - 4 ← expand the factor using FOIL

= 5(4y² + 4y + 1) - 4 ← distribute parenthesis by 5

= 20y² + 20y + 5 - 4

= 20y² + 20y + 1

romanna [79]4 years ago
7 0

Answer:20y2+20y+1

Step-by-step explanation:

Let's simplify step-by-step.

5(2y+1)2−4

Distribute:

=20y2+20y+5+−4

Combine Like Terms:

=20y2+20y+5+−4

=(20y2)+(20y)+(5+−4)

=20y2+20y+1

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