Answer:
the third one ig
Step-by-step explanation:
Answer:
25a2b2+4a2b+6ab2-4ab+7
Step-by-step explanation:
=sum of two polynomials -one addend
=20a2b2-8a2b+6ab2-4ab+2-(-5a2b2+12a2b-5)
=20a2b2-8a2b+6ab2-4ab+2+5a2b2-12a2b+5
=25a2b2+4a2b+6ab2-4ab+7
Answer:
Hey!
Your answer is that John's brother is 12 years old!
Step-by-step explanation:
If in the question it says "2 times" you just multiply the subject by 2
In this case it is 6 x 2 = 12
So his brother is 12 years of age!
HOPE THIS HELPS!!
Answer:
(2x^2 + x-3)/(4x^2-9)
Step-by-step explanation:
The denominator looks like an expression in which we have applied the difference of two squares to
In that case, we know that;
a^2-b^2 = (a-b)(a+ b)
That means we would be have 2x + 3 as the other denominator factor and the expression at the denominator would be;
(2x + 3)(2x-3) = 4x^2 - 9
Also, we would have to cancel out 2x + 3 from the numerator too, so as to be left with only the binomial
That means;
(2x+3)(x-1) = 2x^2-2x+ 3x - 3 = 2x^2+x -3
So we have the original expression as;
(2x^2 + x-3)/(4x^2-9)
Answer:
<em>Proof below</em>
Step-by-step explanation:
Let's assume a is a type 1 integer. By definition, it means we can find an integer n such that
a=3n+1
We need to prove
is a type 1 integer
Expanding

If
is a type 1 integer, then we should be able to find an integer m such as

Equating

solving for m

Since we know n is an integer, then the expression of m gives an integer also. Having found the required integer m, the assumption is proven