Rewrite the expression without the negative exponent x^-3
___
3y^-3

NEED HELP ASAP!!!

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Ответ:

moisesnunez408

20.03.2020

Mathematics

answer : a and b are the equation which is quadratic in form.

a quadratic equation is an equation of the second degree. the standard form of quadratic equation is ax² + bx + c = 0 with a, b, and c are constants and x is any unknown variable.

given: a. $6(x+2)^2+8x+2+1=0$

$\rightarrow6(x+2)^2+8x+3=0$

add and subtract 13 on the equation, we get

$\rightarrow6(x+2)^2+8x+3+13-13=0$

$\rightarrow6(x+2)^2+8x+16-13=0$

$\rightarrow6(x+2)^2+8(x+2)-13=0$

substitute x+2=u, wet get

$\rightarrow6(u)^2+8(u)-13=0$ which is a quadratic equation with unknown variable 'u'.

b. $6x^4+7x^2-3=0$

substitute $x^2=t$ , we get

$6t^2+7t-3=0$ which is a quadratic equation with unknown variable 't'

c. $5x^6+x^4+12=0$ cannot be a quadratic equation as 4 is not a factor of 6.

d. $x^9+x^3-10=0$ ,substitute $x^3=w$ , we get

$w^3+w-10=0$ which is not a quadratic equation .

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Rewrite the expression without the negative exponent x^-3 ___ 3y^-3 NEED HELP ASAP!!!