Gr. 10 math again!
posted by Nini .
Factor by Grouping.Thanks Bob. PLEASE SHOW ME THE STEPS!
1.) 6x221xy+8xz28yz
just to make it clear,the 2 infront of 21
is actualli an Exponent 2.
2.) x2+5x+7x+35

Online, x^2 = x squared.
6x^2  21xy + 8xz  28xz = 6x^2  21xy  20xz =
x(6x  21y  20z)
x^2 + 5x + 7x +35 = x^2 + 12x + 35
What two numbers would give a product of 35 and add to 12? That should help you factor.
I hope this helps. Thanks for asking.
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