Where you take a word problem and turn it into an equation
Answer:
3. 40 4. 132
Step-by-step explanation:
you multiply the length and the width
X+3=61
x=61-3=58
58+37=95
180-95=85
so x=58 and y=85
To factor quadratic equations of the form ax^2+bx+c=y, you must find two values, j and k, which satisfy two conditions.
jk=ac and j+k=b
The you replace the single linear term bx with jx and kx. Finally then you factor the first pair of terms and the second pair of terms. In this problem...
2k^2-5k-18=0
2k^2+4k-9k-18=0
2k(k+2)-9(k+2)=0
(2k-9)(k+2)=0
so k=-2 and 9/2
k=(-2, 4.5)
