In the expression '15b + 23b + 10', the coefficients are 15, 23, and 10.
If you simplify the expression to '38b + 10", then the coefficients are 38 and 10.
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Find two numbers that add up to make 7 (the coefficient of the second term) and which multiply to make 10 (the product of the coefficients of the first and last terms - 1*10): x2 + 7x + 10 = x2 + 5x + 2x + 10 = x(x + 5) + 2(x + 5) = (x + 2)(x + 5)
10 + 10 + 10 + 5 + 5 +1 = 41.
10 X 10 = 100 You can do this four ways: You can do it mentally in your head or you can add them all up on paper by lining up the numbers correctly with each other. You can use a calculator and that is the easiest way. An alternate way is to multiply 10 by 10.
10 + 10 + 10 = 30
18 + 10 + 28 + 10 = 66