Factor.
-$$t ^ { 2 } + 0.1 t - 0.42$$
A) $( t + 0.42 ) ( t - 1 )$
B) $( t + 0.7 ) ( t - 0.6 )$
C) $( t + 0.05 ) ^ { 2 }$
D) $( t - 0.7 ) ( t + 0.6 )$

Name: Factor. -\[t ^ { 2 } + 0.1 t - 0.42\] A) $( t + 0.42 ) ( t - 1 )$ B) $( t + 0.7 ) ( t - 0.6 )$ C) $( t + 0.05 ) ^ { 2 }$ D) $( t - 0.7 ) ( t + 0.6 )$
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Question

Quizplus · Accepted Answer

The quadratic $t^2 + 0.1t - 0.42$ factors into $(t + 0.7)(t - 0.6)$ because the product of 0.7 and -0.6 is -0.42 and their sum is 0.1.

Factor - t2+0.1t−0.42t ^ { 2 } + 0.1 t - 0.42t2+0.1t−0.42

Factor
- $t ^ { 2 } + 0.1 t - 0.42$