Question

Find the value of 4x²5x³+9x+2,when x=5

Answer 1

Step-by-step explanation:

9x2+(7a−5)x+25=(3x+5)2

=>9x2+(7a−5)x+25=(3x)2+2(3x)(5)+(5)2

=>9x2+(7a−5)x+25=9x2+2(3x)(5)+25

=>(7a−5)x=30x

=>7a−5=30

=>7a=35

=>a=5

I hope this helped you mate,thank you