-(-9) = 9 because the minus outside switches all the operations that are inside the parentheses.
ABCD is a rectangle with angle abd=40 determine angle dbc
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I can’t do this without an image, because I am not that smart. All angles should be 90, but a rectangle equals 360 in a rectangle.
Can anyone help me find the answer to
2x+9x+4
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so to factor
to factor this in ax^2+bx+c form where a is greater than 1, b=z+y ac=xy solve
so a=2 b=9 c=4
9=y+z c times a=4 times 2=8 what 2 numbers add up to 9 and mulitply to get 8? factor 8 8= 1 times8 2 times 4 if we add them up we get 1+8=9 check 2+4=6
the numbers are 1 and 8 split up the middle term 2x^2+1x+8x+4 group (2x^2+1x)+(8x+4) factor out/reverse distribute (x)(2x+1)+(4)(2x+1) reverse distribute useing distributive proerty ab+ac=a(b+c) (x+4)(2x+1)
the factored form is (x+4)(2x+1)
Solve the equation. x/2 + 2x/3 =5
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x=30/70 it is simple if you think about it
Does anyone know about this one? I appreciate you guys helping me((: