4 years ago

Problem Page Simplify. −7a3a please helppp

1 answer:

5 0

Multiply them!! First multiply the numbers. $-7*3 = -21$ . But then, you have to multiply the variables. What is a times a equal to? Well, a times a is just a squared. Hence, the expression is equal to $-21 a^{2}$

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How to solve (s + 5)(s - 5)

m_a_m_a [10]

$(s+5)(s-5)=s^2-25$

Here, we want to solve an expansion

To get this, we simply multiply the terms in the first bracket with the terms in the second, before we proceed to collect like terms

We have this as follows;

$\begin{gathered} (s+5)(s-5)\text{ = s(s-5)+5(s-5)} \\ =s^2-5s+5s-25 \\ =s^2-25 \end{gathered}$

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1 year ago

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3 years ago

The difference between two numbers is 40. The first number and four times the second number is 55. Find the two numbers and show

posledela

The numbers are 43 and 3. The difference between these two is 40. 43+3*4 equals 55.

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4 years ago

5.7005 million in figures???

Reika [66]

Answer:

5,700,500

Step-by-step explanation:

5.7005 million

Million is written as 1,000,000

Now:

5.7005million is 5.7005 x 1,000,000

This gives: 5,700,500

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3 years ago

Read 2 more answers

Can you help me find a?<br> 0.64 = a^2

erma4kov [3.2K]

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4 years ago