Hello :
9x²+ bx +49 = (3x)² +2(3x)(7) +7²
so : b = 42
9x²+42x+49 = ( 3x+7)²....( <span>perfect square trinomial)</span>
Answer:
1. A
2.C
3.C
4.C
Step-by-step explanation:
1. 16-(-11) would be 16+11, which equals 27
2. 7-(-16) is just 7+16, which is 23
3. -12-39, You add 39 to 12, which is 51, and add the Negative sign so its C.51
4. Step by step, 5-8 is -3, and -3+-13 would be 10.
Calculators Help!
Answer:
?= -7/4 or -1 3/4
Step-by-step explanation:
-7/10+x=-2 9/20
-7/10+x=-49/20
+7/10 +7/10
x=-7/4
Algebra
<span>3f5 </span>Changes made to your input should not affect the solution:
(1): "f5" was replaced by <span> "f^5". final result </span>
<span>3f<span>5</span></span>
The answer is -1,359. Hope that works.
