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(4k+5)(6k+10)=(4k+5)(6k+10)=(4k)(6k)+(4k)(10)+(5)(6k)+(5)(10)=24k2+40k+30k+50=24k2+70k+50 Show Step-By-Step (1 more today) Unlock full access Upgrade to Premium for Step-By-Step Evaluate: Enter a number for each variable.(4k+5)(6k+10)
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(4k+5)(6k+10)Learn how to multiply polynomialsKhan Academy Video: Multiplication of Polynomials
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(4k+5)(6k+10)Learn how to multiply polynomialsKhan Academy Video: Multiplication of Polynomials
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This is FOIL!
F (first)- 4k times 6k= 24 k^2
O(outer)-4k times 10= 40k
I(inner)-5 times 6k= 30k
L(last)- 5 times 10=50
24k^2+70k+50
You can't find k based off lack of information, the answer to be exact, but in middle school I learned FOIL, if thats what you meant.
F (first)- 4k times 6k= 24 k^2
O(outer)-4k times 10= 40k
I(inner)-5 times 6k= 30k
L(last)- 5 times 10=50
24k^2+70k+50
You can't find k based off lack of information, the answer to be exact, but in middle school I learned FOIL, if thats what you meant.