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BigorU [14]
3 years ago
9

B = 4 and c = -5, evaluate b 2 - c 2

Mathematics
2 answers:
kakasveta [241]3 years ago
8 0

Answer:

18

Step-by-step explanation:

Putting those numbers in the equation, you get 4(2)-(-5)2.

Multiply it, giving us 8-(-10).

Then lastly simplify it.

8-(-10)

8+10

18

NISA [10]3 years ago
4 0

Hey!

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

Steps To Solve:

~Substitute

(4)2 - (-5)2

~Multiply

8 - (-10)

~Subtract

18

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

Answer:

18

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

Hope This Helped! Good Luck!

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astra-53 [7]

Step-by-step explanation:

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2 years ago
Which expression is the equivalent
Gwar [14]
I think you are correct 
7 0
3 years ago
Are these two lines parallel, perpendicular or neither?<br> y = -1/3x - 5<br> y = 1/3x + 2
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Multiply. Check picture.
VashaNatasha [74]

The answer is 3x^4-13x^3-x^2-11x+6.

Solution:

Use algebraic identity: a^m\times a^n=a^{m+n}

For example: x^2\times x=x^{2+1}=x^3

Given expression (x^2-5x+2) and (3x^2+2x+3).

To multiply these equations.

(x^2-5x+2)\times(3x^2+2x+3)

             =x^2(3x^2+2x+3)-5x(3x^2+2x+3)+2(3x^2+2x+3)

             =(3x^4+2x^3+3x^2)+(-15x^3-10x^2-15x)+(6x^2+4x+6)

             =3x^4+2x^3+3x^2-15x^3-10x^2-15x+6x^2+4x+6

Combine like terms together.

             =3x^4+(2x^3-15x^3)+(3x^2-10x^2+6x^2)-15x+4x+6

             =3x^4-13x^3-x^2-11x+6

(x^2-5x+2)\times(3x^2+2x+3)=3x^4-13x^3-x^2-11x+6

Hence the answer is 3x^4-13x^3-x^2-11x+6.

3 0
3 years ago
Which graph represents - 9x + 4y &lt; 8?
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I can’t see the 2nd graph? Can you scroll down??
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3 years ago
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