HELP FOR BRAINLIEST!

B

Step-by-step explanation:

imaginary number (the number doesn't exist)

all square root has positive number inside the sign, but if the number is negative, we call it imaginary

√-1 = i

so i x i = -1

then

√-49 = √-1 * √49 = i * 7 = 7i

5/6

step-by-step explanation:

if i remember correctly with perpendicular stuff you just take away the negative

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1