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Naddika [18.5K]

3 years ago

5

-3^2=

2 answers:

cluponka [151]3 years ago

7 0

Answer:

Step-by-step explanation:

-9

horrorfan [7]3 years ago

7 0

Answer:

9

Step-by-step explanation:

(-3)²

(-3) × (-3) <u>∴ [ ( - ) × ( - ) = + ]</u>

9

Thus, (-3)² = 9

<u>-TheUnknown</u><u>Scientist</u>

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What is the equation of this line in standard form?

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What is the standard form for 4x10,000+8x1,000+2x100+3x10+6x1+7x1/10

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2 years ago

What is d = -12t + 96 ?

lbvjy [14]

Answer:

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Step-by-step explanation:

tell me if this is wrong

4 0

3 years ago

Expand and simplify (<img src="https://tex.z-dn.net/?f=2x%5E%7B2%7D" id="TexFormula1" title="2x^{2}" alt="2x^{2}" align="absmidd

kupik [55]

Answer:

2x(5x + 14) + 15

Step-by-step explanation:

Given: (2 $x^{2}$ + 3)(4x + 5) - 8x( $x^{2}$ - 2)

(2 $x^{2}$ + 3)(4x + 5) - 8x( $x^{2}$ - 2) = 2 $x^{2}$ (4x + 5) + 3(4x + 5) - 8x( $x^{2}$ - 2)

= (8 $x^{3}$ + 10 $x^{2}$ + 12x + 15) - 8 $x^{3}$ + 16x

= 8 $x^{3}$ + 10 $x^{2}$ + 12x + 15 - 8 $x^{3}$ + 16x

collecting like terms to have,

8 $x^{3}$ - 8 $x^{3}$ + 10 $x^{2}$ + 12x + 16x + 15

10 $x^{2}$ + 28x + 15

Thus,

(2 $x^{2}$ + 3)(4x + 5) - 8x( $x^{2}$ - 2) = 10 $x^{2}$ + 28x + 15

= 2x(5x + 14) + 15

5 0

3 years ago