1)
45x^3+5x
the GCF is 5x because that is a factor of both.
The answer would be 5x(9x^2+1)
2)
u^2-5u+6
factoring is finding what multiplies to the last number to add to the middle number. Those numbers are -3 and -2.
the answer would be (u-3)(u+2)
3)
m^2-49
difference of perfect squares
answer is (m+7)(m-7)
4)
x^5+4x^4+3x^3
GCF is x^3 so it's x^3(x^2+4x+3)
Factor that and it's x^3(x+3)(x+1)
13 - ? = 5
13 - 8 = 5! Subtract!
Answer:
The answer is A
Step-by-step explanation:
Khan
Ok let me explain it to you like this:
Let the price for one egg be x and the price for one toast be y Then: <span><span>3 = </span><span><span>2x+1y,
</span><span>1.8 = 1x+1y.</span></span></span><span>When we substract, we get x = 1.2 and y = 0.6, so the price for an egg is $1.20 and the price for a toast is $0.60.
</span>Hope this is helpful
