How to do factor each expression 63 + 81
1 answer:
Answer:
Step-by-step explanation:
To factor an expression you have to first find the highest common factor (HCF) of the numbers in the expression. You divide them by their HCF, bracket it and place the HCF outside the bracket.
To check if it is factored properly you can do the opposite of what you just did by clearing the bracket.
9 (7 + 9)
(9 x 7) + (9 x 9)
= 63 + 81
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Step 1: Prioblem
Estimate the difference of 765 and 333. Explain your estimate.
Step 2: Concept and Method
Difference mean to subtract the smaller number from larger number.
Therefore,
Step 3: Final answer
= 432