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sattari [20]
3 years ago
10

I have already tried -24 not the answer apparently. Let me know if the quiz is incorrect and it is -24 or not. Otherwise, PLEASE

HELP!!!

Mathematics
2 answers:
Elena L [17]3 years ago
8 0

Answer:

Math is far from my strongsuite, but try 18x?

Step-by-step explanation:

I'm assuming "For x=-4" means that x is equal to -4. X is squared by 2 meaning that it would essentially be "-4×-4", which is equal to positive 16. 16+2x should be equal to 18x. I hope I'm correct about that XD

borishaifa [10]3 years ago
7 0
Answer:
step by step explanation
remember x= -4 and if theres a negative number adding or subtracting or multiplying or dividing whichever number is bigger with a positive or negative will determine if the answer is a negative or positive
x to the power of 2 is -4•-4 which is positive 16 because two negatives cancel each other out to a positive
adding positive 16 to 2x which is 2•-4 equaling to -8
16 + -8 equals positive 8
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Please help, thank you!
geniusboy [140]

Answer:

Es que te ayude amigo medas corona por favor plis

4 0
2 years ago
In two or three sentences explain how you would solve for the real solutions of the following equation: please help asap!!
g100num [7]

the real solutions for the equation x^{3}=-64 are -

x=4,2+-2\sqrt{3i}

Step-by-step explanation:

   x^{3} = - 64

   x^{3} +64  = 0

   We can write 64 as  4^{3}

  x^{3} + 4^{3} = 0

  using the identity  ( x^{3}+y^{3} = (x+y)(x^{2} -xy+y^{2} ) )

we get,

  = (x+4) (x^{2} -x*4+4^{2} )

  = (x+4)(x^{2} -4x+16)    ....................(1)

 solving the quadratic equation  ,

   x^{2} -4x+16 =0

solutions of this quadratic equation can be obtained by

   x=-b +- \sqrt{b^{2}-4ac } /2a

let use y for factors

x=-(-4x)+-\sqrt{(-4x^{2} )-4*x^{2} *16}  / 2*x^{2}

x=4x+-\sqrt{16x^{2} -64x^{2} } /2x^{2}

x=4+-\sqrt{16-64}/2

x=4+-4\sqrt{3i} /2

<u />x=2+-2\sqrt{3i}    ..................(2)

from the equation 1 we have,

x-4=0

which gives solution x=4

and from equation 2 we got  x=2+-2\sqrt{3i}

so the real solutions for the equation x^{3}=-64 are -

x=4,2+-2\sqrt{3i}

3 0
2 years ago
Whats (346 +873 x 6) 7
labwork [276]

Answer:

39,088?

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
THis is wierd math g g g g g
Ganezh [65]
It’s 3.5

use formula the formula
V=lwh
——
3

7 0
2 years ago
Area of rectangle and triangles!! HELP ASAPPP
nirvana33 [79]

Answer:

13. 15

14. 7.25

15. 18.7

16. 40.515

17. 9.6

18. 12.95

19. 20.4

20. 16.2

21. 24

22. 25.65

7 0
2 years ago
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