Divide the product by one of the multiplicands. The answer should be the other multiplicand.
monomial
You make a check by they're name, then go to delete.
When multiplying exponential factors the exponents are added if bases are the same. 5^3 * 5^4 = 5^7 check it out on your calculator.
(3b - 1)(a - b)
150
(a - 2b)(c - 3d)
To check your answer when multiplying by estimating, round the numbers involved to the nearest convenient value. Then, perform the multiplication using these rounded numbers to get an estimated product. Compare this estimate to your original answer; if they are close, your calculation is likely correct. If the estimated product significantly differs from your answer, you may need to recheck your calculations.
(2a + 3)(b - 3c)
The expression, as given, cannot be factorised.
I suppose you mean factoring the polynomial. You can check by multiplying the factors - the result should be the original polynomial.
2, 11 and 41 Check it out by multiplying all three numbers together: 2*11*4 = 902
multiplying