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shusha [124]
3 years ago
12

Please say why he is wrong . IF U GET IT CORRECT U GET BRAINLIEST NEED ANSWER QUICK

Mathematics
1 answer:
Rom4ik [11]3 years ago
4 0

Answer:

a. 4(a+5)(a-5)

d. (2d+9)(2d+9)

Step-by-step explanation:

hope these help i couldnt understand b and c

* the point is in the difference between (a+b)(a+b) and (a+b)(a-b)

in the former you have a2+2ab+b2 the latter is just a2-b2

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Factor the Expression and choose the correct answer from the choices below.
pentagon [3]
The answer is (5p+6q)(5p-6q)
Steps:
Apply difference of the squares rule: x^2-y^2=(x+y)(x-y)
25p^2-36q^2=(5p+6q)(5p-6q)

Hope this helps you! (:
-PsychoChicken4040
3 0
3 years ago
-8x-2y=6 in slope form
Harrizon [31]
Perhaps you mean "slope-intercept" form. Solve for y and reduce the fractions.
.. -8x -6 = 2y . . . . . . . . add 2y-6
.. y = -4x -3 . . . . . . . . . divide by 2

Your line in slope-intercept form is
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4 0
3 years ago
Help please -19 + 2z = -21
777dan777 [17]

Answer:

z = -1

Step-by-step explanation:

You must first start out by adding 19 to both sides to isolate the variable z, which results in:

2z = -2

Now, you can just divide by two on both sides to get z completely on its own, which gives you:

z = -1

Hope this helped somewhat! :D

6 0
2 years ago
What is 69% of 420?<br><br> jduheqicgewohia
Likurg_2 [28]

Answer:

289.8

Step-by-step explanation:

69%*420=289.8

8 0
3 years ago
Read 2 more answers
Please help with simplifying 2|-16.75|
klio [65]
First find the absolute value of -16.75. |-16.75|= 16.75

Then multiply that by 2. 16.75x2=33.5

So 2|-16.75| simplified is 33.5
6 0
3 years ago
Read 2 more answers
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