http://prntscr.com/at7q52
@ganeshie8 @Miracrown @Astrophysics help pls
u need to find factor of 30 and their sum should be b ....
I mean u need to find b ..... get the factors
It says to determine two different values of “b” in \[x^2 + bx + 30\]so that the expression can be factored into the product of two binomials. What you want, is to open two sets of parenthesis, so that x is in the first position, and since the constant is\[30\]you could have \[(+3)(+10)\]then you would have (\[x + 3)(x+10) = x^2 + 13x + 30\]so \[b = 13\]in this case. Or, you can have \[(x + 6)(x + 5)\]which also yields \[x^ + bx + 30\]And specifically, you would have \[x^2 + 11x + 30\]so \[b = 11\]in this case. Other possibilities are possible. So 2 possible values for b is \[b = 10\]and \[b = 11\] It says to explain how the process would change if the expression was 2x^2+bx+30 You would have to multiply 30 and 2 and get 60. Then you would have to determine the possibility of b from the factors of 60, instead of 30.
woah
so many letters and numbers ;~;
read it one at a time
yes i kinda get it now
i read it backwards
its easier starting from bottom up
haha well im glad you get it :)
thank u <3
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