3 years ago

X^2+3x−10=0 (solve for x)

Mathematics

1 answer:

kap26 [50]3 years ago

7 0

Answer:

x1=2 x2=-5

Step-by-step explanation:

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evablogger [386]

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Step-by-step explanation:

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3 years ago

Solve this equation using the radical equation method

Yuki888 [10]

The domain:
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$2x=\sqrt{3x+6}-1\ \ \ |+1\\\\2x+1=\sqrt{3x+6}\ \ \ \ |^2\\\\(2x+1)^2=\left(\sqrt{3x+6}\right)^2\ \ \ |use:\ (a+b)^2=a^2+2ab+b^2\\\\(2x)^2+2\cdot2x\cdot1+1^2=3x+6\\\\4x^2+4x+1=3x+6\ \ \ \ |-3x-6\\\\4x^2+x-5=0\\\\4x^2-4x+5x-5=0\\\\4x(x-1)+5(x-1)=0\\\\(x-1)(4x+5)=0\iff x-1=0\ \vee\ 4x+5=0\\\\x=1\ \vee\ 4x=-5\\\\x=1\in D\ \vee\ x=-1.25\in D$

$Answer:\ \boxed{x=-1.25\ \vee\ x=-1}$

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3 years ago

What's 9+10=?<br>What's 9+10=?<br>What's 9+10=?<br>What's 9+10=?

dangina [55]

Answer:

Step-by-step explanation:

Its 19

9+10 is 19

Yeah

im just putting random words so it'll let me post this

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2 years ago