3 years ago

A certain number added to its square is 30. Find the number

Mathematics

1 answer:

Alex Ar [27]3 years ago

5 0

X+x²=30
x²+x-30=0
(x+6)(x-5)=0
x=-6 or x=5

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30 POINTS! Combine the like terms of the 2 questions below:

astraxan [27]

Answer:

$\tt 1)\: \boxed{\tt 4y+10}$

$\tt 2)\:\boxed{\tt 0.5x^4+10.5}$

Step-by-step explanation:

1) y + 4 + 3(y + 2)

Expand:-

$\tt y+4+3y+6$

Combine like terms:-

$\tt y+3y+4+6$

$\boxed{\tt 4y+10}$

2) 0.5(x⁴ - 3) + 12

Expand:-

$\tt 0.5x^4-1.5+12$

Add/Subtract Numbers:-

$\boxed{\tt 0.5x^4+10.5}$

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Jerry's mom went grocery shopping for a football game. A pickle jar cost $3 each, oranges cost $0.25 each, and hot cheetos were

Vsevolod [243]

Answer:$19

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5*2=10

.25*12=3.0

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Step-by-step explanation:

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2 years ago

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vredina [299]

The correct Option is (A) 35x^3 - 16x^2 + 44x - 48

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Scarves = 3

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n = 3

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3 years ago

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