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Gwar [14]
3 years ago
7

Expan and simplify the following expression: 3(2a + 3)(2a - 1) - 4 (a^2 - 7)

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
3 0
= 3(4a^2 + 4a - 3) - 4a^2 + 28
= 12a^2 + 12a - 9 - 4a^2 + 28
= 8a^2 + 12a + 19
= 4a(2a + 3) + 19
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8 0
3 years ago
A square has a perimeter of 36x - 12. Which expression represents one side of the<br> square?
valina [46]

Answer:

9x - 3

Step-by-step explanation:

Hello!

A square has 4 sides.

We can factor out 4 from the expression to find the value of one side.

Factor:

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This means that each side of the square is 9x - 3 units long.

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2 years ago
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3 0
3 years ago
I need help on this question please
ollegr [7]
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3 0
3 years ago
Zorona weighs 92 pounds. Her weight is 6 pounds more than half of her father’s weight. How much does her father way?
mihalych1998 [28]

Answer:

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Step-by-step explanation:

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hope this helps!

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