(2a+0.5) (7a-0.3)?

Answer 1

That's not a question. Hell, those aren't even words.

Answer 2

Another way to do it, is the following:
7a(2a+0.5) Multiply each term of the first factor by 7a:
14a2 + 3.5a (2 is an exponent)
-0.3(2a+0.5) Multiply each term of the first factor by -0.3:
-0.6a - .15 is the answer. Now add the similar terms of the two products and the final answer is:
14a2 + 2.9a - .15

Answer 3

Ok use the FOIL method. That stands for First, Outside+Inside, Last.
First terms: 2a*7a=14a^2
Outside plus inside terms:2a*-0.3+0.5*7a
That equals -6/10a+3/1/2a=2/6/10a
Last terms: 0.5*-0.3=-0.15
Solution: 14a^2+2/6/10a-0.15 is believe.
I did that in my head. Just remember FOIL.

Answer 4

You need to multiply the two, like this:

(A + B)(C + D) = A*C + A*D + B*C + B*D

So we get:

2a*7a + 2a*(-0.3) + (0.5)*7a + (0.5)*(-0.3)

= 14a^2 - 0.6a + 3.5a - 0.15

= 14a^2 + 2.9a - 0.15

Answer 5

(2a+0.5) (7a-0.3) =
14a2 - 2a(.3) + .5(7a) - .15 =
14a2 - .6a + 3.5a - .15 =
14a2 + 2.9a - .15

I hope this is along the line you were asking.

Answer 6

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Answer 7

Solve (2a+0.5)(7a-0.3)

First: eliminate parenthesis --- use the Foiling Method...

(2a)(7a)+(2a)(-0.3)+(0.5)(7a)+(0.5)(-0.3)

Sec: combine the terms...

14a^2+(-0.6a)+(3.5a)+(-1.5)

14a^2 - 0.6a + 3.5a - 1.5

Third: combine "like" terms...

= 14a^2 + 2.9a - 1.5a

Answer 8

(2a+0.5) (7a-0.3) =
14a² -0.6a + 3.5 a - 0.15 =
14a² + 2.9a - 0.15
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Answer 9

(2a+0.5)(7a-0.3)
14a^2 + 2.9a - 0.15 =0
b+/- sqrt b^2-4ac/2a

2.9 +/- SQRT8.41-8.4/28

2.9+/- 0.56/28

a = 0.12 or 0.084

Answer 10

14a^2 - 2.9a - .15

Answer 11

Factored out it is =14a-0.15

the variable "a" is un-definable do to lack of info.