3 years ago

What is 15 + 9 = ?(5 + 3)

Mathematics

1 answer:

faltersainse [42]3 years ago

4 0

3 because 5 times 3 it’s 15 and 3 times 3 is nine

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faust18 [17]

Answer:

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Step-by-step explanation:

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This is due to the rules of division.

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3 years ago

What are the solutions to the quadratic equation x^2-16=0

maks197457 [2]

Good evening.

This is a incomplete quadratic equation, because it does not have the term bx. Therefore, we can solve this faster with the following strategy:

$\mathsf{x^2 - 16 = 0}$

Add 16 to both sides:

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Take the square root:

$\mathsf{\sqrt {x^2} = \pm\sqrt{16}}\\ \\ \mathsf{\boxed{\mathsf{x = \pm4} }}$

Therefore:

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3 years ago

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defon

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3 years ago

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kolezko [41]

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