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Zielflug [23.3K]

4 years ago

15

Which quadratic equation is equivalent to (x+2)2+5(x+2)-6=0

1 answer:

professor190 [17]4 years ago

6 0

$(x+2)^2+5(x+2)-6=0\\\\x^2+2\cdot x\cdot2+2^2+5\cdot x+5\cdot2-6=0\\\\x^2+4x+4+5x+4-6=0\\\\x^2+9x+2=0$

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Please help me !!!

Mashutka [201]

$1)~3x^3+15x^2-2x-10=3x^2(x+5)-2(x+5)=(3x^2-2)(x+5)\\\\
2)~8x^2+12x+2xy+3y=4x(2x+3)+y(2x+3)=(4x+y)(2x+3)\\\\
3)~x^3+2x^2-5x-10=x^2(x+2)-5(x+2)=(x^2-5)(x+2)\\\\
4)~x^4+4x^3+2x+8=x^3(x+4)+2(x+4)=(x^3+2)(x+4)\\\\
5)~6y^2-3y+2yz-z=3y(2y-1)+z(2y-1)=(3y+z)(2y-1)\\\\
6)~x^2y+3x^2-7y^2-21y=x^2(y+3)-7y(y+3)=(x^2-7y)(y+3)\\\\
7)~10x^3-25x^2+4x-10=5x^2(2x-5)+2(2x-5)=\\\\=(5x^2+2)(2x-5)\\\\
8)~2x^2y+6xy-x-3=2xy(x+3)-(x+3)=(2xy-1)(x+3)$

8 0

4 years ago

18. About 4 inches separate Oklahoma City, Oklahoma, and Dallas, Texas, on a

s2008m [1.1K]

Answer:

420 miles

Step-by-step explanation:

4*105=420 miles

for 1 inch is 105

for 4 inches=105*4=420

6 0

3 years ago

Read 2 more answers

please help what is seventy three thousanths!! in number form please please will give brainly or points just plaseeeeeeeeeeeeeee

Ksju [112]

<h2>0.073</h2>

hope that helps :)

8 0

4 years ago

Y equal 3/2x plus 10 (4,12)

strojnjashka [21]

Y equals 3/2x plus 10 (4,12)
4 is x and 12 is y
y=3/2x+10
12=3/2(4)+10
12=3/8+10
12=0.375+10
12=10.375
10 is not equivalent/equal to 10.375

6 0

3 years ago

A Suppose you played Getting Close with only these game cards:

viva [34]

1/2 and 2/3 because they are the biggest numbers.
9/10 and 5/6 because they are the smallest numbers.

7 0

4 years ago