Which two equations would be most appropriately solved by using the quadratic formula? Select each correct answer. −2x^+5x=7
−(x−3)(x+9)=0
0.25x^2+0.8x−8=0
3x² = 9

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.