Q. Divide. If there is a remainder, include it as a simplified fraction.(2j3+8j2−42j)÷(j+7)______
Divide by First Term: We will use polynomial long division to divide (2j3+8j2−42j) by (j+7). First, we divide the first term of the dividend, 2j3, by the first term of the divisor, j, to get the first term of the quotient. 2j3÷j=2j2
Multiply and Subtract: Now, we multiply the entire divisor (j+7) by the first term of the quotient (2j2) and subtract the result from the original polynomial.(2j2)(j+7)=2j3+14j2Subtract this from the original polynomial:(2j3+8j2−42j)−(2j3+14j2)=−6j2−42j
Divide New Leading Term: Next, we divide the new leading term, −6j2, by the leading term of the divisor, j, to get the next term of the quotient.−6j2÷j=−6j
Multiply and Subtract Again: We multiply the entire divisor (j+7) by the new term of the quotient (−6j) and subtract the result from the remaining polynomial.(−6j)(j+7)=−6j2−42jSubtract this from the remaining polynomial:(−6j2−42j)−(−6j2−42j)=0
Check for Remainder: Since the remainder is 0, we have divided the polynomial completely, and there is no remainder to express as a fraction.
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