Question

-5[(-7x3)6z2] = 35x3(-30z2) is an identity.

a) True
b) False

Answer 1

The given equation is -5[(-7x3)6z2] = 35x3(-30z2). By simplifying both sides of the equation, we find that they are equal. Therefore, the equation is false.

Step-by-step explanation:

The given equation is -5[(-7x3)6z2] = 35x3(-30z2) and we need to determine if it is an identity. To do this, we can simplify both sides of the equation and see if they are equal.

• -5[(-7x3)6z2] = -5[-21x6z2] = 105x6z2 = 630xz2
• 35x3(-30z2) = 105x3z2 = 630xz2

However, this is not an identity, as it implies 210=−1050, which is not true. Therefore, the statement is false.