(x+5)(x+3)=x2−32
Is the equation a true or false statement?
To assess whether the equation (x+5)(x+3)=x2−32 is a true or false statement, we follow these steps:
- Step 1: Expand the left side using distributive property (FOIL).
- Step 2: Simplify the expression.
- Step 3: Simplify the right side.
- Step 4: Compare both sides of the equation.
Step 1: Expand (x+5)(x+3):
(x+5)(x+3)=x(x+3)+5(x+3)
=x2+3x+5x+15
Step 2: Simplify this expression:
x2+3x+5x+15=x2+8x+15
Step 3: Evaluate the right side:
x2−32=x2−9
Step 4: Compare x2+8x+15 to x2−9:
Clearly, x2+8x+15=x2−9, as the former includes the terms 8x+15, while the latter is simply reduced by 9.
Therefore, the equation (x+5)(x+3)=x2−32 is a Lie (false statement) because the left and right sides do not match for any value of x.