Only the ones u see :/ exponents math - pls help

Mathematics

1 answer:

quester [9]2 years ago

3 0

Oh fun! I can’t do the whole page since I have to for my own but it’s pretty easy trust me! For example 3 x 10*3<—— (that’s supposed to be a smaller 3.) first do 10 x 10 x 10= 30 and do 30 x 3= 90! And boom easy you have your answer! Hope that helps!

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2.5 ( y + ⅖ ) = -13<br> im really bad at math someone pls help

My name is Ann [436]

Answer:

-5.6

Step-by-step explanation:

first distribute the 2.5

also convert the 2/5 to decimal (0.4) because it's hard to work with both decimal and fraction

2.5y + 2.5*0.4 = -13

2.5y +1 = -13

y = -14/2.5 = -5.6

5 0

2 years ago

OOOO

lbvjy [14]

Step-by-step explanation:

Given bi-quadratic equation is:

$x^4+95x^2 -500=0$

Substituting $x^2=a,$ given bi-quadratic equation reduces in the form of following quadratic equation:

$a^2 +95a -500=0\\$

Let us factorize the above quadratic equation:

$a^2 +95a -500=0\\\therefore\: a^2 +100a -5a-500=0\\\therefore\: a(a +100) -5(a+100)=0\\\therefore\: (a +100)(a -5)=0\\\therefore\: (a +100)=0\:\: or \:\: (a -5)=0\\\therefore\: a = - 100\:\: or \:\: a = 5\\\\CASE\: (1)\:\\When\: a = - 100 \implies x^2 = - 100\\\therefore x=\pm \sqrt{-100}\\$