X(x-1)=30 solve by factoring

see below

Step-by-step explanation:

Let's solve your equation step-by-step.

x(x−1)=30

Step 1: Simplify both sides of the equation.

x2−x=30

Step 2: Subtract 30 from both sides.

x2−x−30=30−30

x2−x−30=0

Step 3: Factor left side of equation.

(x+5)(x−6)=0

Step 4: Set factors equal to 0.

x+5=0 or x−6=0

x=−5 or x=6

x=−5 or x=6

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

d i think

step-by-step explanation: