<span>(f−g)</span><span>(x)</span>=<span>f<span>(x)</span></span>−<span>g<span>(x<span>)
plug every thing in </span></span></span>5<span>x2</span>−3−<span>(<span>x2</span>−4x−8<span>)
then solve </span></span>5<span>x2</span>−3−<span>x2</span>+4x+<span>8
</span>=4<span>x2</span>+4x+<span>5</span>
1) 4, because 4/5 is closer to 4 than it is 3 1/2.
2) 100
3) 5
Greater than 90° but less than 180°.
Well if you download the app photo math and take a photo of it. It will solve it for you
