Factor -7x^3+21x^2+3x-9 by grouping

Step-by-step explanation:

We can take "common" from first 2 terms and common from next 2 terms. Shown below:

That's how we do it. We can't simplify, or factor, any further.

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

there would be 162.15 calories in this cereal.

step-by-step explanation: