Explain (1+y)^2 how does it turn into 1+2y+y^2 ? i don't understand

1 answer:

6 0

I will show you the steps on how you get that answer and if you have any questions after that let me know and I'd be more than happy to help answer them for you.
The first step for solving (1 + y)² is to use the equation (a + b)² = a² + 2ab + b² to expand the expression.
1² + 2 × 1y + y²
1 raised to any power equals 1,, so remove the power.
1 + 2 × 1y + y²
Calculate the product of 2 × 1y.
1 + 2y + y²
Finally,, use the commutative property to reorder the terms.
y² + 2y + 1
Let me know if you have any further questions.
:)

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The approximate equation is n = (ln 6)/10 and approximate value is n = 0.179.

<h3>What is Exponential equation?</h3>

In mathematics, an exponential function is a function of form f (x) = aˣ, where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0.

Here, given equation; (we are using n in place of t)

-5.e¹⁰ⁿ = -30

On dividing -5 both sides, we get

-5.e¹⁰ⁿ/-5 = -30/-5

e¹⁰ⁿ = 6

Taking 'ln' on both side, we get

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n = (ln 6)/10

n = 1.791759/10

n = 0.179

Thus, the approximate equation is n = (ln 6)/10 and approximate value is n = 0.179.

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