Answer:
x=-5
Step-by-step explanation:
-8x=-6x+10
-8x+6x=10
-2x=10
x=-5
Answer: P represents -13
Step-by-step explanation:
Since a negative x negative + positive, we know that p has to be a negative.
For me, I added both 21 and -5 (though I made it into a positive), and got 26.
What number times -2 is positive 26?
So, you divide 26/-2, which then becomes -13.
Thus, p=-13 :)
Let the original length of the square be x cm.
(x+5) X (x-2) = 60
Or, x^2-2x+5x-10-60 = 0
Or, x^2+3x-70=0
Or, x^2+10x-7x-70=0
Or, x(x+10)-7(x+10)=0
Or, (x-7)(x+10)=0
Therefore, x=7 or x=-10 (rejected as the length cannot be negative)
Ans: Area of the square=l^2=7^2=49 square meters.
Answer:

Step-by-step explanation:
When subtracting polynomials, first start with distributing the negative sign to the second polynomial:

Simplify by combining like terms:

If you use PEMDAS: Parentheses, Exponents, Multiply, Divide, Add, Subtract for order of operations your answer will be 277
9x27+2x31-28
243+62-28
305-28=277