Math, asked by Nabhankhan97451, 3 months ago

Simplify and find the value of -2t2+4r+5t-6r for t=-4 and r=2.

(a) -56

(b) 65

(c) -65

Answers

Answered by cutieshanaya28

3

Given = -2t2+4r+5t-6r

put t = -4 and r= 2

we get : -2(-4)2+4(2)+5(-4)-6(2)

= 16+8-20-12

= -8

the value is -8

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