Whats 5 root5 - 2 root5 and second question

8 root7 + 3 root7

Would really appreciate help guys <3

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

figure c

step-by-step explanation:

hope this .

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.