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miss Akunina [59]
3 years ago
5

Plz answer it........

Mathematics
2 answers:
ddd [48]3 years ago
4 0
Here u go,the app is called photomath

bearhunter [10]3 years ago
3 0
Okay,
so,
The given expression is :
16{(a + b)}^{2}   -  49 {(a - b)}^{2}

As 16 is sqaure of 4 and 49 is square of 7, then this whole expression could also be written as

{{((4)(a + b))}}^{2}  -   {{((7)(a - b))}}^{2}
Now,
as you might've notices by now that this expression is in the form of

{x}^{2}  -  {y}^{2}
And there's an alzebric identity about it. That is
{x}^{2}  -  {y}^{2}  = (x + y)(x - y)
Now by using this alzebric identity. we're gonna split our expession as shown below:
(4(a + b)  +  7(a - b)) \times (4(a + b) - 7(a - b)  \\  \\  = (4a + 4b + 7a - 7b) \times (4a + 4b  - 7a + 7b) \\  = (11a - 3b)( 11b - 3a)




By solving the last step i.e,
(11a-3b)(11b-3a)

we'll get,
121a^2 - 33ab -33b^2 -8ab

= 121a^2-33b^2 -41ab .


You might be interested in
Slove.<br> -5 3/4 - 3 1/2 =<br> A. -9 1/4 <br> B. -2 1/4 <br> C. -8 2/3<br> D. 2 1/4
Komok [63]

Answer:

A

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Question 3
hoa [83]

answer is (-7,2)

y = -x -5

y= x+9

Both equations have y on the left hand side

So we equate both equations

We replace -x-5 for  y in the second equation

-x -5 = x+9

Subtract x on both sides

-2x -5 = 9

Now add 5 on both sides

-2x = 14

Divide by -2 from both sides

x = -7

Now plug in -7 for x in the first equation

y = -x -5

y = -(-7)  -5= 7-5 = 2

So answer is (-7,2)

4 0
3 years ago
Read 2 more answers
A.line CD<br> B.line ED<br> C.point C<br> D.point D
Hunter-Best [27]
I am confused what is your question then i will tell you the answer. 
4 0
3 years ago
The set of possible values of m is (5, 7, 9).
Vladimir [108]
The values of k are 4,5,6

7 0
3 years ago
Read 2 more answers
Factor f(x) = 4x3 + 15x2 – 24x + 5 into linear factors given that - 5 is a zero of f(x).15f(x) = 4x3 + 15x2 - 24x + 5 =(Factor c
Basile [38]

If x=-5 is a zero, then the first factor of the polynomial would be (x + 5 )

To find the other two factors we can divide the polynomial by the expression (x+5).

Using synthetic division, we have:

-5 I 4 15 -24 5 (Coefficients of the dividend)

I -20 25 -5 (Multiplying each coefficient by the results of the substraction and adding)

-----------------------------------------------------------------------------------

4 -5 1 0 (Coefficients of the quotient)

The result of the division is 4x^2 - 5x + 1. Factoring it, we have:

4x^2 - 4x -x + 1 (Separating -5x into -x and -4x)

4x (x - 1) - (x -1) (Factoring each pair of terms)

(x-1)(4x-1) (Factoring using the common factor)

So the answer would be:

(x + 5 )(x-1)(4x-1)

3 0
10 months ago
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